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DTSTART;TZID=America/Chicago:20250207T123000
DTEND;TZID=America/Chicago:20250207T133000
DTSTAMP:20260419T115802
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:20260419T115802
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:20260419T115802
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:20260419T115802
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
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250221T120000
DTEND;TZID=America/Chicago:20250221T133000
DTSTAMP:20260419T115802
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
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250221T140000
DTEND;TZID=America/Chicago:20250221T150000
DTSTAMP:20260419T115802
CREATED:20250113T152601Z
LAST-MODIFIED:20250205T152943Z
UID:10016197-1740146400-1740150000@uwm.edu
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:20260419T115802
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 51ÁÔÆæ. \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:20260419T115802
CREATED:20250226T142543Z
LAST-MODIFIED:20250226T142543Z
UID:10016211-1740745800-1740749400@uwm.edu
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:20260419T115802
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
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