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DTSTART;VALUE=DATE:20241018
DTEND;VALUE=DATE:20241020
DTSTAMP:20260420T172343
CREATED:20240629T204300Z
LAST-MODIFIED:20241008T132858Z
UID:10016164-1729209600-1729382399@uwm.edu
SUMMARY:ICMA-IX
DESCRIPTION:  \n \nInternational Conference on Mathematical Modeling and Analysis of Populations in Biological Systems \nThe broad\, general theme of the conference is the formulation\, validation\, analysis and simulation of mathematical models for the spatiotemporal dynamics of biological populations. A special emphasis at this ninth conference will be placed on multiple scale dynamics in ecology\, epidemiology\, and systems biology; many biological systems operate on multiple spatial and temporal scales and the incorporation of these scales may be essential for capturing system dynamics. Specific topics include\, but are not limited to: \n\nImmuno-epidemiological and vector-host systems\nMolecular-cellular modeling in systems biology and oncology\nBiological invasions and persistence\nAdaption and evolutionary dynamics\nBiological systems operating on multiple spacial or temporal scales\n\nICMA-IX aims to accomplish at least three broad tasks: scientific progress\, scientific collaboration\, and the training of a future generation of mathematical biologists. The conference will thus have a significant impact\, both nationally and internationally\, on future research in biomathematics and mathematical biology. The collaborative opportunities provided to researchers at all points of the career path from undergraduate and graduate students\, to early-career faculty\, to established senior researchers will establish new directions and avenues for the national and international research community. \nHosts: \nPeter Hinow\nProfessor\nEMS\, E491\nhinow@uwm.edu \nGabriella Pinter\nProfessor\nEMS\, E479\ngapinter@uwm.edu
URL:/math/event/icma-ix/
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241018T123000
DTEND;TZID=America/Chicago:20241018T133000
DTSTAMP:20260420T172343
CREATED:20241008T150918Z
LAST-MODIFIED:20241008T150918Z
UID:10016183-1729254600-1729258200@uwm.edu
SUMMARY:Graduate Student Colloquium: Gregory Mwamba
DESCRIPTION:Blowup of the Nonlinear Klein-Gordon Equation in FLRW Spacetimes\nGregory Mwamba\nGraduate Student\nUniversity of California – Merced \nThe nonlinear Klein-Gordon equations are a class of important evolution equations that describe the movement of spinless relativistic particles\, which can lend understanding in many physical applications. In this talk we will demonstrate a sufficient condition for blowup of the nonlinear Klein-Gordon equation\, with arbitrarily positive initial energy in Friedmann-Lemaître-Robertson-Walker spacetimes. This is accomplished using an established concavity method that has been employed for similar PDEs in Minkowski space. This proof relies on the energy inequality associated with this equation. \nThis talk will be online at the following zoom link: https://wisconsin-edu.zoom.us/j/94983351854 and will also be streamed in EMS E495.
URL:/math/event/graduate-student-colloquium-gregory-mwamba/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241018T140000
DTEND;TZID=America/Chicago:20241018T153000
DTSTAMP:20260420T172343
CREATED:20240826T192205Z
LAST-MODIFIED:20241008T153529Z
UID:10016169-1729260000-1729265400@uwm.edu
SUMMARY:Colloquium: Prof. Qingshuo Song
DESCRIPTION:Long-Time Behaviors of Stochastic Linear-Quadratic Optimal Control Problems\nProf. Qingshuo Song\nAssociate professor\nWorcester Polytechnic Institute \nIn this talk\, we will discuss the asymptotic behavior of the solution to a linear-quadratic stochastic optimal control problems. By establishing a connection between the ergodic cost problem and the so-called cell problem in the homogenization of Hamilton-Jacobi equations\, we reveal the turnpike properties of the linear-quadratic stochastic optimal control problems from various perspectives.
URL:/math/event/colloquium-qingshuo-song/
CATEGORIES:Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241024T160000
DTEND;TZID=America/Chicago:20241024T170000
DTSTAMP:20260420T172343
CREATED:20241022T134734Z
LAST-MODIFIED:20241022T134734Z
UID:10016188-1729785600-1729789200@uwm.edu
SUMMARY:Math Club Meets: Dr. Kevin A. Palencia Infante
DESCRIPTION:Math Club Meets: Dr. Kevin A. Palencia Infante\n51���� Math Club students are invited to meet with Dr. Kevin A. Palencia Infante an Assistant Professor and Calculus Coordinator at Northern Illinois University (NIU). He is part of the Creating Opportunities in Mathematics through Equity and Inclusion (COME-IN) project under Transforming Post-Secondary Education in Mathematics (TPSEMath)\, where he serves as a DEI consultant. Over the next two years\, he will work together with our Math department with the purpose of enhancing efforts to broaden participation and inclusion. In this role\, he will provide an external perspective\, drawing on his experience and background to support the department through the implementation of its plan. \n 
URL:/math/event/math-club-meets-dr-kevin-a-palencia-infante/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Department Meetings
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241025T113000
DTEND;TZID=America/Chicago:20241025T123000
DTSTAMP:20260420T172343
CREATED:20241022T134415Z
LAST-MODIFIED:20241022T134415Z
UID:10016187-1729855800-1729859400@uwm.edu
SUMMARY:Graduate Students Meet: Dr. Kevin A. Palencia Infante
DESCRIPTION:Graduate Students Meet: Dr. Kevin A. Palencia Infante\n51���� Math Graduate students are invited to meet with Dr. Kevin A. Palencia Infante an Assistant Professor and Calculus Coordinator at Northern Illinois University (NIU). He is part of the Creating Opportunities in Mathematics through Equity and Inclusion (COME-IN) project under Transforming Post-Secondary Education in Mathematics (TPSEMath)\, where he serves as a DEI consultant. Over the next two years\, he will work together with our Math department with the purpose of enhancing efforts to broaden participation and inclusion. In this role\, he will provide an external perspective\, drawing on his experience and background to support the department through the implementation of its plan. \n 
URL:/math/event/graduate-students-meet-dr-kevin-a-palencia-infante/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Department Meetings
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241025T123000
DTEND;TZID=America/Chicago:20241025T133000
DTSTAMP:20260420T172343
CREATED:20241022T133753Z
LAST-MODIFIED:20241022T133753Z
UID:10016185-1729859400-1729863000@uwm.edu
SUMMARY:Community of Practice Meeting
DESCRIPTION:Community of Practice: Broaden Participation and Inclusion via the TPSE COME-IN Project\nKevin A. Palencia Infante is an Assistant Professor and Calculus Coordinator at Northern Illinois University (NIU). He is part of the Creating Opportunities in Mathematics through Equity and Inclusion (COME-IN) project under Transforming Post-Secondary Education in Mathematics (TPSEMath)\, where he serves as a DEI consultant. Over the next two years\, he will work together with the University of Wisconsin-Milwaukee’s math department with the purpose of enhancing efforts to broaden participation and inclusion. This event is envisioned partly as a listening session for Dr Palencia Infante to learn about the successes and struggles of our teaching faculty and partly as a discussion and conversation where he can share best practices as an experienced Faculty Teaching Mentor. During his visit he will meet all constituents of our department: undergraduate and graduate students\, teaching faculty and faculty. This session provides an opportunity for our teaching faculty to share their experiences with him.
URL:/math/event/community-of-practice-meeting/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Department Meetings
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241025T140000
DTEND;TZID=America/Chicago:20241025T150000
DTSTAMP:20260420T172343
CREATED:20241022T134016Z
LAST-MODIFIED:20241022T141907Z
UID:10016186-1729864800-1729868400@uwm.edu
SUMMARY:Math Department Town Hall
DESCRIPTION:Town Hall\n\n\n\nOur department is engaged in a two-year project “Creating Opportunities in Mathematics through Equity & Inclusion (COME-IN)” through the professional organization Transforming Post Secondary Education in Mathematics (TPSE). Our consultant\, Dr. Kevin Palencia Infante\, is visiting our department from Northern Illinois University and he will work together with our math department with the purpose of enhancing efforts to broaden participation and inclusion. In this role\, he will provide an external perspective\, drawing on his experience and background to support the department in shaping and implementing its plan. In this Town Hall we will provide a short “State of our Department” and introduce the COME-IN project and our initial plans. \nSpeakers will include Craig Guilbault\, Suzanne Boyd\, Jeb Willenbring and Gabriella Pinter. We aim for a lively discussion with our audience through a question/answer session.
URL:/math/event/math-department-town-hall/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Department Meetings
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241101T123000
DTEND;TZID=America/Chicago:20241101T133000
DTSTAMP:20260420T172343
CREATED:20241022T141444Z
LAST-MODIFIED:20241022T144645Z
UID:10016189-1730464200-1730467800@uwm.edu
SUMMARY:Graduate Student Colloquium: Kim Harry
DESCRIPTION:A q-analog of Kostant’s Weight Multiplicity Formula and a Product of Fibonacci Numbers\nKim Harry\nPhD Graduate Student\nUniversity of Wisconsin-Milwaukee \nUsing Kostant’s weight multiplicity formula\, we describe and enumerate the terms contributing a nonzero value to the multiplicity of a positive root µ in the adjoint representation of sl_{r+1}(C)\, which we denote L(˜α)\, where ˜α is the highest root of sl_{r+1}(C). We prove that the number of terms contributing a nonzero value to the multiplicity of the positive root µ = α_i + α_i+1 + · · · + α_j with 1 ≤ i ≤ j ≤ r in L(˜α) is given by the product F_i · F_(r−j+1)\, where F_n is the nth Fibonacci number. Using this result\, we show that the q-multiplicity of the positive root µ = α_i + α_i+1 + · · · + α_j with 1 ≤ i ≤ j ≤ r in the representation L(˜α) is precisely q^{r−h(µ)}\, where h(µ) = j − i + 1 is the height of the positive root µ. Setting q = 1 recovers the known result that the multiplicity of a positive root in the adjoint representation of sl_{r+1}(C).
URL:/math/event/graduate-student-colloquium-kim-harry/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241101T140000
DTEND;TZID=America/Chicago:20241101T153000
DTSTAMP:20260420T172343
CREATED:20240826T192228Z
LAST-MODIFIED:20241025T170950Z
UID:10016170-1730469600-1730475000@uwm.edu
SUMMARY:Colloquium: aBa Mbirika & Morgan Fiebig
DESCRIPTION:A graphical approach to the Fibonacci sequence (Fn) n≥0 modulo m extended to the Lucas sequences (Un(p\,q))n≥0 and (Vn(P\,q))n≥0\naBa Mbirika & Morgan Fiebig\nUniversity of Wisconsin – Eau Claire \nThe goal of this talk is twofold: (1) extend theory on statistics in the Fibonacci and Lucas sequences modulo m to the Lucas sequences U :=(Un(p\,q))n≥0 and V :=(Vn(p\,q)n 0\, and (2) apply this theory to a novel graphical approach of U and V modulo m. The statistics we explore are the period π(m)\, entry point e(m)\, and order ω(m) := pi(m)/e(m). We generalize a wealth of known Fibonacci and Lucas statistical results to the U and V setting. Based on ω(m)\, we describe behaviors shared by infinite families of nondegenerate U and V sequences with parameters q = ± 1. In our graphical approach we place the cycle of repeating terms of the periods of U and V in a circle\, and patterns which would otherwise be overlooked emerge. In particular\, we exhibit some tantalizing examples in the following three sequence pairs: Fibonacci and Lucas\, Pell and associated Pell\, and\, balancing and Lucas-balancing. Our proofs utilize results from primary sources ranging from the ground-breaking papers of Lucas in 1878 and Carmichael in 1913\, to the seminal works of Wall in 1960 and Vinson in 1963\, amongst others.
URL:/math/event/colloquium-aba-mbirika/
CATEGORIES:Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241115T123000
DTEND;TZID=America/Chicago:20241115T133000
DTSTAMP:20260420T172343
CREATED:20241113T152405Z
LAST-MODIFIED:20241113T164702Z
UID:10016191-1731673800-1731677400@uwm.edu
SUMMARY:Graduate Student Colloquium: Eric Redmon
DESCRIPTION:Finite State Machines and Bounded Permutations\nEric Redmon\nGraduate Student\nMarquette University \nWe define a k-bounded permutation π of length n to be a permutation such that for each pair of adjacent entries $\pi$ and $\pi(i + 1)$ for $i = 1\, 2\, 3\, . . . \, n − 1$ we have $|\pi(i) − \pi(i + 1)| \leq k$. Previous work has shown that the generating function for this family of permutations is rational\, and has computed generating functions for small values of $k$. In this talk\, we will discuss the nature of finite state machines and how we can leverage the insertion encoding devised by Albert\, Linton\, and Ruškuc to build a finite state machine that we can use to find generating functions for larger values of $k$.
URL:/math/event/graduate-student-colloquium-eric-redmon/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241115T140000
DTEND;TZID=America/Chicago:20241115T153000
DTSTAMP:20260420T172343
CREATED:20240826T192945Z
LAST-MODIFIED:20241029T133524Z
UID:10016171-1731679200-1731684600@uwm.edu
SUMMARY:Colloquium: Dr. Lei Hua
DESCRIPTION:Unified Tail Dependence Measures and Its Applications in High-Frequency Financial Data\nDr. Lei Hua\nAssociate Professor\, Director of Statistical Consulting Service\nNorthern Illinois University \nIn this presentation\, I will first motivate the necessity for a unified tail dependence measure\, followed by an examination of the theoretical framework for developing such measures utilizing random variables characterized by regularly varying tails. Specific instances that result in unified tail dependence measures applicable in practical scenarios will be demonstrated. Ultimately\, I will explore the application of the unified tail dependence measure in the analysis of high-frequency financial market data and discuss novel empirical insights from financial markets.
URL:/math/event/colloquium-nick-mayers/
CATEGORIES:Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241122T123000
DTEND;TZID=America/Chicago:20241122T133000
DTSTAMP:20260420T172343
CREATED:20241030T170149Z
LAST-MODIFIED:20241119T221438Z
UID:10016190-1732278600-1732282200@uwm.edu
SUMMARY:Colloquium: Nick Mayers
DESCRIPTION:  \nWell-Behaved Kohnert Posets\nDr. Nicholas Mayers\nPostdoctoral Research Scholar\nNorth Carolina State University \nKohnert polynomials form a family of polynomials indexed by diagrams that consist of unit cells arranged in the first quadrant. Many families of well-known polynomials have been shown to be examples of Kohnert polynomials\, including key\, Schur\, and Schubert polynomials. Given a diagram D\, the monomials occurring in the corresponding Kohnert polynomial encode diagrams formed from D by applying sequences of certain moves\, called “Kohnert moves\,” each of which alters the position of at most one cell. In this talk\, we focus on the underlying sets of diagrams which generate the monomials of Kohnert polynomials. With each such collection of diagrams\, one can associate a poset structure which is known to not\, in general\, be well-behaved. In particular\, the corresponding “Kohnert posets” generally do not have a unique minimal element\, are not ranked\, and are not lattices. Here\, we will focus on recent attempts to find conditions under which Kohnert posets are well-behaved in the sense that they have a unique minimal element\, are ranked\, or are EL-Shellable. No background knowledge concerning posets is assumed.
URL:/math/event/colloquium-nick-mayers-2/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241206T123000
DTEND;TZID=America/Chicago:20241206T133000
DTSTAMP:20260420T172343
CREATED:20241203T162313Z
LAST-MODIFIED:20241203T162405Z
UID:10016193-1733488200-1733491800@uwm.edu
SUMMARY:Graduate Student Colloquium: Math Graduate Student Panel
DESCRIPTION:Graduate Student Colloquium: Math Graduate Student Panel\nThis is our last Math Graduate Student Colloquium of the semester. We will have a panel of senior graduate students happy to discuss our experiences here in 51����’s math department and answer any questions you might have. This can range from department life\, teaching\, research\, and more. Please come and join us in the conversation and bring any topics you would like to talk about or questions you might have.
URL:/math/event/graduate-student-colloquium-math-graduate-student-panel/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250124T140000
DTEND;TZID=America/Chicago:20250124T150000
DTSTAMP:20260420T172343
CREATED:20250113T152344Z
LAST-MODIFIED:20250113T153759Z
UID:10016195-1737727200-1737730800@uwm.edu
SUMMARY:Colloquium: Dr. Sarah Sword
DESCRIPTION:Studying Successful Doctoral Students from Underrepresented Groups\nDr. Sarah Sword\nPrincipal Research Scientist\nEducation Development Center\, Inc. \nIn this talk\, we will share early findings from an NSF study of 75 doctoral students and recent PhDs in mathematics from underrepresented groups. The project has conducted in-depth\, semi-structured interviews with four cohorts: newly accepted students\, early graduate students (pre-qualifying exams)\, advanced graduate students (dissertation level)\, and recent PhDs (0-5 years since graduation). The research questions in the study are: (1) What are lived experiences of successful underrepresented students who are pursuing mathematics PhDs? and (2) What formal and informal structures are perceived by doctoral students as effective supports? Themes drawn from the interviews can inform department policies and practices to create environments that support students from underrepresented groups as they earn PhDs in mathematics.
URL:/math/event/colloquium-sarah-sword/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250131T123000
DTEND;TZID=America/Chicago:20250131T133000
DTSTAMP:20260420T172343
CREATED:20250122T143346Z
LAST-MODIFIED:20250122T143346Z
UID:10016205-1738326600-1738330200@uwm.edu
SUMMARY:Graduate Student Colloquium: Soft Open
DESCRIPTION:Graduate Student Colloquium: Soft Open\nThis is our first Math Graduate Student Colloquium. We will be hanging out\, eating snacks\, and getting back into the swing of semester life. Please\, join us and get a feel of what to expect in this semester’s colloquium. If you want to bring any snacks\, feel free to show off any baking\, cooking\, or generosity skills.
URL:/math/event/graduate-student-colloquium-soft-open/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Graduate Student Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250207T123000
DTEND;TZID=America/Chicago:20250207T133000
DTSTAMP:20260420T172343
CREATED:20241113T164552Z
LAST-MODIFIED:20250127T141638Z
UID:10016192-1738931400-1738935000@uwm.edu
SUMMARY:Community of Practice:  Introduction to Transparency in Learning and Teaching 
DESCRIPTION:Community of Practice: Introduction to Transparency in Learning and Teaching\nWhat is the core purpose of the assignments\, tasks\, and learning opportunities in our courses?  Better yet\, what do our students think is the primary purpose?  In this workshop we will discuss Transparency in Learning and Teaching (TILT) and how it can inform our teaching.  We’ll develop a list of best practices and brainstorm how to implement in our courses.  To get the most out of the session\, bring an assignment such as a homework set\, an out-of-class task\, or a project from a class you’re teaching – ideally something coming up this semester or early next semester—and bring along a colleague\, too!  We’ll actively workshop together\, and you’ll walk away with a new and improved transparent assignment (or at least the tools to build one)!\n\nFor a sneak peek\, check out tilthighered.com\n\n\nFacilitated by Hayley Nathan and Suzanne Boyd.
URL:/math/event/community-of-practice-introduction-to-transparency-in-learning-and-teaching/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Seminars
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250207T140000
DTEND;TZID=America/Chicago:20250207T150000
DTSTAMP:20260420T172343
CREATED:20250113T152507Z
LAST-MODIFIED:20250127T142333Z
UID:10016196-1738936800-1738940400@uwm.edu
SUMMARY:Colloquium: Ning Wei
DESCRIPTION:The Impact of Ephaptic Coupling and Ionic Electrodiffusion on Arrhythmogenesis in the Heart\nNing Wei\nAssistant Professor\nPurdue University \nCardiac myocytes synchronize through electrical signaling to contract heart muscles\, facilitated by gap junctions (GJs) in the intercalated disc (ID). GJs provide low-resistance pathways for electrical impulse propagation between myocytes\, serving as the primary mechanism for electrical communication in the heart. However\, research indicates that conduction can persist without GJs. For instance\, GJ knockout mice still exhibit slow\, discontinuous electrical propagation\, suggesting alternative communication mechanisms. Ephaptic coupling (EpC) serves as an alternative way for cell communication\, relying on electrical fields within narrow clefts between neighboring myocytes. Studies show that EpC can enhance conduction velocity (CV) and reduce conduction block (CB)\, especially when GJs are compromised.  Reduced GJs and significant electrochemical gradients are prevalent in various heart diseases. However\, existing models often fail to capture their combined influence on cardiac conduction\, which limits our understanding of both the physiological and pathological aspects of the heart.  Our study aims to address this gap by developing a two-dimensional (2D) multidomain electrodiffusion model that incorporates EpC. This is the first model to capture the dynamics of all ions across multiple domains\, enabling us to reveal the impact of EpC in the heart. In particular\, we investigated the interplay between ionic electrodiffusion and EpC on action potential propagation\, morphology\, electrochemical properties and arrhythmogenesis in both healthy and ischemic hearts. Our findings indicate that ionic electrodiffusion enhances CV and reduces CB under strong EpC. Specifically\, the electrodiffusion of Ca2+ and K+ intensifies the effects of EpC on action potential morphology\, whereas Na+ diffusion mitigates these effects. Ionic electrodiffusion also facilitates action potential propagation into ischemic regions when EpC is substantial. Moreover\, strong EpC can effectively terminate reentry\, prevent its initiation\, and lower the maximum dominant frequency (max DF)\, irrespective of GJ functionality. However\, weak EpC may help counteract proarrhythmic effects when GJ coupling is slightly to moderately reduced\, contributing to the stabilization of conduction patterns.  Additionally\, strong EpC  notably alters ionic concentrations in the cleft\, significantly increasing [K+] and nearly depleting [Ca2+]\, while causing moderate changes in [Na+]. This multidomain electrodiffusion model sheds light on the mechanisms of EpC in the heart. 
URL:/math/event/colloquium-ning-wei/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250214T123000
DTEND;TZID=America/Chicago:20250214T133000
DTSTAMP:20260420T172343
CREATED:20250205T151547Z
LAST-MODIFIED:20250205T151547Z
UID:10016207-1739536200-1739539800@uwm.edu
SUMMARY:Graduate Student Colloquium: Liam Jemison
DESCRIPTION:Finite Elements for Mathematicians\nLiam Jemison\nPhD Graduate Student\nUniversity of Wisconsin-Milwaukee \nWe will discuss the finite element method\, a powerful approach for numerically solving differential equations. We will introduce the weak formulation of a differential equation from the functional analysis viewpoint with a simple application of the galerkin method\, and then discuss generalizations\, some error estimates\, and software implementations.
URL:/math/event/graduate-student-colloquium-liam-jemison/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250214T140000
DTEND;TZID=America/Chicago:20250214T153000
DTSTAMP:20260420T172343
CREATED:20250205T144814Z
LAST-MODIFIED:20250205T144814Z
UID:10016206-1739541600-1739547000@uwm.edu
SUMMARY:Colloquium: Dr. Alexander Wilson
DESCRIPTION:Symmetries and Diagram Algebras\nDr. Alexander Wilson\nVisiting Assistant Professor of Mathematics\nOberlin College \nIn this talk I will introduce you to the world of symmetric group representations through diagram algebras\, which trace their origin to the Temperley-Lieb algebra with applications in integrable models\, knot theory\, and quantum groups. For representation theory\, these algebras offer a sneaky path toward solving difficult problems by understanding the ways that graph-theoretic diagrams combine. The only background I will assume is some familiarity with linear algebra\, so if you like (or at least tolerate) playing around with pretty combinatorial objects\, I hope you’ll attend!
URL:/math/event/colloquium-dr-alexander-wilson/
CATEGORIES:Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250221T120000
DTEND;TZID=America/Chicago:20250221T133000
DTSTAMP:20260420T172343
CREATED:20250219T140056Z
LAST-MODIFIED:20250219T140056Z
UID:10016209-1740139200-1740144600@uwm.edu
SUMMARY:Community of Practice:  Supporting Students in Math (SupportU)
DESCRIPTION:Community of Practice: Supporting Students in Math (SupportU)\nHave you interacted with a student that you were especially concerned about\, but you didn’t quite know what to say\, who to tell\, or what to do? Perhaps the student confided in you about a serious personal issue\, said something that led you to worry about them\, or acted in a way that concerned you. We welcome Dr. Becky Freer\, the Associate Dean of Students\, who will facilitate a training on supporting students. You’ll learn tools to identify and support students who may be experiencing challenges or crises. You’ll also learn about how to make referrals\, seek assistance\, and connect students to the Dean of Students Office Case Managers as well as campus and community resources.\n\nFacilitated by Dr. Becky Freer\, Associate Dean of Students
URL:/math/event/community-of-practice-supporting-students-in-math-supportu/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Seminars
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250221T140000
DTEND;TZID=America/Chicago:20250221T150000
DTSTAMP:20260420T172343
CREATED:20250113T152601Z
LAST-MODIFIED:20250205T152943Z
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SUMMARY:Colloquium: Mr. Mike Clutterbuck
DESCRIPTION:Embeddings: The Language of AI\nMr. Mike Clutterbuck\nLead Data Scientist\nWantable Inc. \nEmbeddings are a core concept in machine learning that help AI understand and organize complex data. They take things like words\, images\, or user behavior and turn them into compact numerical representations\, making it easier for AI to spot patterns and relationships. This is how LLMs understand language and recommendation systems personalize content. \nMathematically\, embeddings work by placing similar items closer together in a structured space\, using techniques like matrix factorization\, neural networks\, and dimensionality reduction. This makes them essential for search\, personalization\, fraud detection\, next-word prediction\, and more. While they might seem abstract\, embeddings are working behind the scenes in many of the AI-powered products and tools we use today
URL:/math/event/colloquium-mike-clutterbuck/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250227T100000
DTEND;TZID=America/Chicago:20250227T120000
DTSTAMP:20260420T172343
CREATED:20250226T135546Z
LAST-MODIFIED:20250226T135546Z
UID:10016210-1740650400-1740657600@uwm.edu
SUMMARY:PhD Dissertation Defense: Kimberly Harry
DESCRIPTION:Kostant’s Formula and Parking Functions: Combinatorial Explorations\nKimberly Harry\nUniversity of Wisconsin-Milwaukee \nWe let L(λ) denote the irreducible highest weight representation of the classical simple Lie algebra g with highest weight λ. Kostant’s weight multiplicity formula gives a way to compute the multiplicity of a weight µ in L(λ)\, denoted m(λ\, µ)\, via an alternating sum over the Weyl group whose terms involve the Kostant partition function. The Weyl alternation set A(λ\, µ) is the set of Weyl group elements that contribute nontrivially to the multiplicity m(λ\, µ). We prove that Weyl alternation sets are order ideals in the weak Bruhat order of the Weyl group. Specializing to the Lie algebra of type A\, we prove that the Weyl alternation sets A(˜α\, µ)\, where ˜α is the highest root of sl_{r+1}(C) and µ is a positive root is a product of Fibonacci numbers. Using this result\, we show that the q-multiplicity of the positive root in the representation L(˜α) is precisely a power of q. We give a complete characterization of the Weyl alternation sets A(˜α\, µ)\, where µ is now a negative root of sl_{r+1}(C). We also show that the cardinality of these Weyl alternation sets satisfies a two-term recurrence relation involving Fibonacci numbers. Time permitting I will present further results related to collaborative projects I have contributed to during my years at 51����. \nAdvisor: Pamela E. Harris \nCommittee Members:\nProfs. Jeb Willenbring\, Kevin McLeod\, Gabriella Pinter\, and Jonah Gaster
URL:/math/event/phd-dissertation-defense-kimberly-harry/
LOCATION:EMS Building\, Room W434\, W434; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room W434 W434; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=W434; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250228T123000
DTEND;TZID=America/Chicago:20250228T133000
DTSTAMP:20260420T172343
CREATED:20250226T142543Z
LAST-MODIFIED:20250226T142543Z
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SUMMARY:Graduate Student Colloquium: Matt McClinton
DESCRIPTION:Fractal Geometry and Non-Integer Dimensions\nMatt McClinton\nPhD Graduate Student\nUniversity of Wisconsin-Milwaukee \nPopularized in the 1980s\, fractals have become something of a household name. These fractal sets often demonstrate peculiar topological properties. One such property is the notion of a fractal dimension. Sets such as the Cantor set\, Sierpinski Gasket (SG)\, and the von Koch curve are traditionally visualized in 2D images. However\, these sets actually exist in-between dimensions 1 and 2! \nCertain fractals can be built using what is known as an Iterated Function System (IFS)\, and there is a powerful theorem stating that having an IFS representation of a fractal provides a simple means of determining the fractal dimension. I will begin by stating the IFS that generates the Sierpinski Gasket. There are two transformations on the Gasket to which creates the Level-n Stretched Sierpinski Gasket (SSG^n). I will demonstrate how one constructs the IFS for SSG^n\, as well as provide the highlights to a theorem in which I prove the fractal dimension of SSG^n.
URL:/math/event/graduate-student-colloquium-matt-mcclinton-2/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250228T140000
DTEND;TZID=America/Chicago:20250228T150000
DTSTAMP:20260420T172343
CREATED:20250114T154837Z
LAST-MODIFIED:20250210T190030Z
UID:10016201-1740751200-1740754800@uwm.edu
SUMMARY:Colloquium: Prof. Alastair Fletcher
DESCRIPTION:Infinitesimal Spaces of Quasiregular Mappings\nProf. Alastair Fletcher\nProfessor of Mathematical Sciences and Director of Undergraduate Studies\nNorthern Illinois University \nHow can we differentiate functions which are not differentiable? In the context of quasiregular mappings\, a generalization of holomorphic functions where now infinitesimal circles are mapped to infinitesimal ellipses\, there is a satisfactory answer to this question given by infinitesimal spaces. In this talk\, we will survey these objects and discuss some ongoing work with relevance to the Decomposition Problem for bi-Lipschitz maps.
URL:/math/event/alastair-fletcher/
LOCATION:EMS Building\, EMS E495\, 3200 Cramer St\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250307T123000
DTEND;TZID=America/Chicago:20250307T133000
DTSTAMP:20260420T172343
CREATED:20250305T204035Z
LAST-MODIFIED:20250305T204035Z
UID:10016213-1741350600-1741354200@uwm.edu
SUMMARY:Community of Practice:  Let's Talk About OER (Open Educational Resources*)
DESCRIPTION:Community of Practice: Let’s Talk About OER (Open Educational Resources*)\n\nWe will chat about the state of OER (Open Educational Resources*) within the Community and within the department. We’ll discuss its pros and cons as well as opportunities and barriers. Please bring any of your own thoughts\, concerns\, and experiences related to OER! \n*OER refers to learning materials that are free to access\, reuse\, and adapt. For example\, open textbooks\, open learning videos\, open online homework platforms\, open lesson plans\, etc. \nFacilitated by Kelly Kohlmetz
URL:/math/event/community-of-practice-lets-talk-about-oer-open-educational-resources/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Seminars
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250307T140000
DTEND;TZID=America/Chicago:20250307T150000
DTSTAMP:20260420T172343
CREATED:20250113T160838Z
LAST-MODIFIED:20250226T151306Z
UID:10016198-1741356000-1741359600@uwm.edu
SUMMARY:Colloquium: Dr. Jason DeBlois
DESCRIPTION:Some Things We Do and Don’t Know About Knots\nDr. Jason DeBlois\nAssociate Professor\nUniversity of Pittsburgh \nIn this talk\, “knot” will mean a circle embedded in three-dimensional space. These have been formally studied since the late 19th century. More recently\, new computational and geometric tools have allowed us to make substantial progress on understanding the landscape of knots and their invariants\, but they have also raised new questions. I will introduce the study of knots\, sketch its history\, and describe what is known (to me) about some of these questions relating to hyperbolic geometry.
URL:/math/event/colloquium-jason-deblois/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Colloquia
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250314T123000
DTEND;TZID=America/Chicago:20250314T133000
DTSTAMP:20260420T172343
CREATED:20250303T160815Z
LAST-MODIFIED:20250310T133528Z
UID:10016212-1741955400-1741959000@uwm.edu
SUMMARY:Graduate Student Colloquium: Ariel Minakawa and Gavin Sayrs
DESCRIPTION:Stirling Permutations to Increasing Plane Trees and Back\nAriel Minakawa and Gavin Sayrs\nUndergraduate Students\nUniversity of Wisconsin-Milwaukee \nA Stirling permutation is a permutation on the multiset {1\,1\, 2\, 2\, 3\, 3\, … \,n\, n} such that any numbers appearing between repeated values of i must be greater than i. Recall that a plane tree is a tree drawn on a plane with no edges crossing. An increasing plane tree is a plane tree where each vertex is labeled from 1 to n\, with labels increasing away from the root. Our main result establishes a bijection from Stirling permutations to its respective increasing plain tree.
URL:/math/event/graduate-student-colloquium-ariel-quinn-and-gavin-sayrs/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250314T140000
DTEND;TZID=America/Chicago:20250314T150000
DTSTAMP:20260420T172343
CREATED:20250217T150523Z
LAST-MODIFIED:20250217T150552Z
UID:10016208-1741960800-1741964400@uwm.edu
SUMMARY:Colloquium: Prof. Shamgar Gurevich
DESCRIPTION:How you think on a function defined on 0\,1\,…\,N-1?\nProf. Shamgar Gurevich\nProfessor of Mathematics\nUniversity of Wisconsin-Madison \nBetween thousand to million times per day\, your cellphone calculates the Fourier Transform (FT) of certain functions defined on 0\,1\,…\,N-1\, with N large (order of magnitude of thousands and more). The calculation is done using the Fast Fourier Transform (FFT) – discovered by Cooley–Tukey in 1965 and by Gauss in 1805. \nIn the lecture I want to advertise a beautiful way—due to Auslander-Tolimieri—to obtain the FFT as a natural consequence of an answer to the following: \nQUESTION: How to think on the space of functions on the set 0\,1\,…\,N-1? \nEngineers tell us that there are two answers for this question: \n(A) as functions on that set\, where 0\,1\,…\,N-1 regarded as times; \nand\, \n(B) as functions on that set\, where 0\,1\,…\,N-1 regarded frequencies; \nand then the FT is an operator translating between the two spaces. \nIn the lecture\, I will explain that there is another answer\, i.e.\, a not so well-known third space (C)\, of arithmetic nature\, that also gives an answer to the above question\, and then the FFT appears simply as the composition of two operators:\nthe one translating between spaces (A) and (C)\, and the one that translates (C) to (B). \nRemark: The lecture is prepared to be understood to anyone who is familiar with basic linear algebra. In particular\, advanced undergraduate students\, from computer science\, engineering\, mathematics\, physics\, etc\, are more than welcome to attend.
URL:/math/event/colloquium-prof-shamgar-gurevich/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250316
DTEND;VALUE=DATE:20250324
DTSTAMP:20260420T172343
CREATED:20250113T150928Z
LAST-MODIFIED:20250113T150952Z
UID:10016194-1742083200-1742774399@uwm.edu
SUMMARY:Spring Break
DESCRIPTION:
URL:/math/event/spring-recess/
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DTSTART;TZID=America/Chicago:20250328T123000
DTEND;TZID=America/Chicago:20250328T133000
DTSTAMP:20260420T172343
CREATED:20250324T150039Z
LAST-MODIFIED:20250324T151003Z
UID:10016214-1743165000-1743168600@uwm.edu
SUMMARY:Graduate Student Colloquium: Jackson Thurmond
DESCRIPTION:Generalized Linear Model Approach to the Prediction of the Outcome of Mixed Martial Arts Fights\nJackson Thurmond\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nMixed martial arts is a complex combat sport that encompasses striking\, grappling and submissions. In a sport where fights can be won by finishing a fight or go to decision there is a multitude of factors that can influence the outcome of a fight. In the Ultimate Fighting Championship a fighter is either designated the red or blue corner. Since mixed martial arts is a sport in which two competitors fight\, and one is declared a winner\, the result of a fight can be thought of a binary classification problem. In an effort to determine which factors are statistically significant to a fight\, a generalized linear model approach was selected.
URL:/math/event/graduate-student-colloquium-jackson-thurmond/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
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