Events
Nicholas Higham, University of Manchester, “Challenges in multivalued matrix functions”
SAS 1102Multivalued matrix functions arise in solving various kinds of matrix equations. The matrix logarithm is the prototypical example. Another example is the Lambert W function of a matrix, which is much less well known but has been attracting recent interest. A theme of the talk is the importance of choosing appropriate principal values and making…
Weekly Brown Bag Lunch
SAS 4104Please join us for our last weekly brown bag lunch of the year! 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!
Nicholas J. Higham, University of Manchester, “The rise of multiprecision computations”
SAMSI 19 T. W. Alexander Drive, NCAbstract: https://www.samsi.info/higham-lec Directions: https://www.samsi.info/for-visitors/directions-and-maps/
Ephraim Bililign, Taylor Garnowski, William Reese and Brandon Summers, NC State Undergraduate Student Honors Presentations
1. Ephraim Bililign Title: Measuring the temperature of granular systems Abstract: Granular systems, or collections of athermal mesoscale particles, are immune to temperature in the conventional sense. Thus, to describe the behavior of an jammed assortment of grains, we turn to a modified thermodynamics built on forces and volumes. I will discuss the experimental measurements…
Nam Le, Indiana University, “The Monge-Ampere eigenvalue problem and global smoothness of the eigenfunctions”
SAS 4201In this talk, I will first introduce the Monge-Ampere eigenvalue problem on general bounded convex domains and related analysis. Then I will discuss the recent resolution, in joint work with Ovidiu Savin, of global smoothness of the eigenfunctions of the Monge-Ampere operator on smooth, bounded and uniformly convex domains in all dimensions. A key ingredient…
Beverly Setzer, Samuel Weber and Christopher Cardullo, NC State Undergraduate Student Honors Presentations
1. Beverly Setzer Title: Detecting Hidden Nodes in Neuronal Networks using Adaptive Filtering Abstract: The identification of network connectivity from noisy time series is of great interest in the study of network dynamics. This connectivity estimation problem becomes more complicated when we consider the possibility of hidden nodes within the network. These hidden nodes act…
Rui Hu, “Error analysis of the immersed interface method for elliptic problems with an interface”
SAS 3282Advised by Zhilin Li.
AMS Movie Night “Hidden Figures”
SAS 1102AMS will be hosting a special showing of Hidden Figures and provide pizza and other snacks.
Vladimir Baranovsky, UC Irvine, “Factorization homology and graph homology”
SAS 4201We give a brief overview of factorization homology theory due to Ayala, Francis and Tanaka and explain how it leads to a (still mostly conjectural) generalization of graph homology to homotopy commutative algebras, and an efficient computation of knot invariants coming from factorization homology (at least for alternating links).
MGSA and AMS Cinco de Mayo Celebration
SAS 4104MGSA and AMS will be providing free Moes burritos to celebrate Cinco de Mayo and the end of the semester! All math grad students are welcome, but you must RSVP by Wednesday, May 3 at noon if you plan to eat a burrito. For info about how to RSVP, please email mgsa.ncstate@gmail.com. All math grad…
Faculty Meeting
SAS 4201Erik Skau, “Relaxations to sparse optimization problems and applications”
SAS 4201Advised by Agnes Szanto and Hamid Krim.
Melissa Strait, “Phase-field models of two-fluid flow in a capillary tube and Hele-Shaw cell”
SAS 4201Advised by Michael Shearer.
Spring 2017 NC State Mathematics Graduation Ceremony
SAS 2203The Math Graduation Ceremony for Spring 2017 will be held on Friday, May 12th at 3:00 pm in 2203 SAS Hall.
Ben Cox, College of Charleston, “On the universal central extension of certain Krichever-Novikov algebras”
SAS 4201We will describe results on the center of the universal central extension of certain Krichever-Novikov algebras. In particular we will describe how various families of classical and non-classical orthogonal polynomials appear. We will also provide certain new identities of elliptic integrals. This material we will cover was obtained in joint work with V. Futorny, J.…
Rekha Biswal, Université Laval, “Demazure flags, Chebyshev polynomials and mock theta functions”
SAS 4201The g-stable Demazure modules are a lot of interest because of their connections to representation theory of quantum affine algebras. These modules are indexed by a pair (ell, lambda) where ell is a positive integer and lambda is a dominant integral weight of g and are denoted as D(ell,lambda). Naoi proves that for m>=ell, D(ell,lambda)…
Tom Britton, Stockholm University, “Statistical challenges when analysing emerging epidemic outbreaks”
Cox 306New infectious disease outbreaks have great impact on communities over the world, as recently manifested by the Ebola outbreak. An important statistical task is then to predict the future scenario with and with out preventive measures. In the current talk we will investigate such analyses and see how it can be improved. The main catch…
Steven McKay Sullivan, “Twisted logarithmic modules of free field and lattice vertex algebras”
SAS 4201Advised by Bojko Bakalov.
Khalid Ali Alanezy, “Optimal control of moving interface and phase field separation models”
SAS 4201Advised by Kazufumi Ito.