Events
Laura Storch, University of New Hampshire, “Chaos in ecology: A theoretical approach and a direct application using examples from fisheries”
Cox 306Part 1: A theoretical approachChaotic dynamics have been directly detected in ocean dwelling species, and asymmetrical advective dispersal is the dominant dispersal mechanism in the ocean. Therefore, we must better our understanding of chaotic population dynamics under the influence of a unidirectional current. Here, we examine a spatially explicit, density-dependent population in a unidirectional current,…
Strategies for Navigating Gender Bias Discussion
SAS 4201On behalf of a project run by The Graduate School, AWM will facilitate a discussion among female graduate students about strategies for navigating gender bias in academia. AWM will provide bagels and other treats to participants. This is meant to be a casual conversation, and nothing will be recorded. We will share your stories with…
Tea and Cookies
SAS 4104Michael Ruddy, “Signature map on algebraic varieties”
Let G be a Lie group acting smoothly on the plane. Then two smooth curves C and C' are G-equivalent if there exists some g in G such that gCC'. Can we answer the question, when are two curves G-equivalent? What can we additionally say if we restrict our attention to algebraic curves? In this…
GIST panel: education research in undergraduate mathematics
We'll be focusing on education research in undergraduate mathematics (using it to improve our teaching and learning more about how its done). Our panelists are Karen Keene (Associate Professor and Graduate Program Coordinator in NCSU Stem Ed department) and Jack Bookman (Professor of the Practice Emeritus in the Duke Mathematics department).
Nick Hill and Xiaoyu Luo, University of Glasgow, “Aspects of the cardiovascular system”
Cox 306Aspects of the cardiovascular system:(i) coupling between the left ventricle and systemic arteries, and (ii) arterial dissection. Two topics in mathematical and computational modelling of the systemic arterial circulation will be discussed. First, an immersed boundary model of the left ventricle (LV) is coupled to a structured tree model of the systemic arteries. There is…
Mette Olufsen, NC State, “Why don’t we (usually) faint when we stand up?”
Basic physics suggests that when we stand up, the blood pressure in our brain should drop dramatically. Such a pressure drop should cause us to faint. But most of us don’t faint when we stand up. In this talk I’ll discuss a mathematical model that explains why most of us don’t, and why some people…
Sonia Kovalevsky Day
SAS 2203The NC State Student Chapter of the Association for Women in Mathematics will host its 6th Annual Sonia Kovalevsky Day on Saturday morning, April 8. The event will feature mathematically-oriented games and workshops and a keynote talk by Cynthia Vinzant. It is free, and all 7th and 8th grade girls are welcome to attend. The…
Tea and Cookies
SAS 4104Peter Markowich, University of Cambridge and University of Vienna, “A PDE system modeling biological network formation”
SAS 1102Transportation networks are ubiquitous as they are possibly the most important building blocks of nature. They cover microscopic and macroscopic length scales and evolve on fast to slow times scales. Examples are networks of blood vessels in mammals, genetic regulatory networks and signaling pathways in biological cells, neural networks in mammalian brains, venation networks in…
Wen-Shin Lee, University of Antwerp, “Sparse interpolation, Padé approximation, signal processing, and tensor decomposition”
SAS 4201A mathematical model is called sparse if it is a combination of only a few non-zero terms. The aim of sparse interpolation is to determine both the support of the sparse linear combination and the coefficients in the representation, from a small or minimal amount of data samples. This talk centers around multi-exponential models: A…
Weekly Brown Bag Lunch
SAS 4104Please join us for our weekly brown bag lunch! You bring your lunch, and we will bring a delicious treat. Everyone (not just women) is welcome to join or stop by for as long as they can!
Harbir Antil, George Mason University, “Fractional operators with inhomogeneous boundary conditions: analysis, control, and discretization”
SAS 4201In this talk we introduce new characterizations of spectral fractional Laplacian to incorporate nonhomogeneous Dirichlet and Neumann boundary conditions. The classical cases with homogeneous boundary conditions arise as a special case. We apply our definition to fractional elliptic equations of order s in (0,1) with nonzero Dirichlet and Neumann boundary conditions. Here the domain Omega…
Alejandro Adem, University of British Columbia, “Homotopy group actions and group cohomology”
SAS 4201Let G denote a finite group and X a CW-complex. A homotopy group action is defined as a homotopy class of maps BG -- BAut(X). In this talk we will analyze these actions using techniques from group cohomology. We will show how they relate to geometric actions and how they can be used to construct…
Deena Hannoun Giffen, “Simulating non-dilute transport in porous media using a TCAT-based model”
Advised by Ralph Smith.