Upcoming Events
April 2021
Stanislaw Szarek, Case Western Reserve University/Sorbonne Université
Zoom ID: 936 5420 1948 Password: the last four digits of the Zoom ID in reverse order
Find out moreHussam Al Daas, STFC, Rutherford Appleton Laboratory, Two-level Nyström—Schur preconditioner for symmetric positive definite matrices
Randomized methods are becoming increasingly popular in numerical linear algebra. However, few attempts have been made to use them in developing preconditioners. Our interest lies in solving large-scale sparse symmetric positive definite linear systems of equations where the system matrix…
Find out moreAlessio Porretta, Università di Roma Tor Vergata, Long time behavior in mean field game systems
Mean field game PDE systems were introduced by J-M. Lasry and P.-L. Lions to describe Nash equilibria in multi-agents dynamic optimization. In the simplest model, those are forward-backward systems coupling Hamilton-Jacobi with Fokker-Planck equations. In this talk I will discuss…
Find out moreDustin Kapraun, EPA, SIAM Mathematics in Industry Series
Dustin Kapraun attained degrees in mathematics (B.S., 1998), physics (M.S., 2002), and applied mathematics (Ph.D., 2014), all from North Carolina State University. After finishing the Ph.D., he completed two postdoctoral research appointments at the U.S. Environmental Protection Agency (EPA) National…
Find out moreVishesh Jain, Stanford University, On the real Davies’ conjecture
We show that every $n \times n$ real matrix $A$ is within distance $\delta \|A\|$ in the operator norm of an $n\times n$ real matrix $A'$ whose eigenvectors have condition number $\tilde{O}(\text{poly}(n)/\delta)$. In fact, we show that with high probability,…
Find out moreBarbara Kaltenbacher, University of Klagenfurt, Some Asymptotics of Equations in Nonlinear Acoustics
High intensity (focused) ultrasound HIFU is used in numerous medical and industrial applications ranging from lithotripsy and thermotherapy via ultrasound cleaning and welding to sonochemistry. The relatively high amplitudes arising in these applications necessitate modeling of sound propagation via nonlinear wave…
Find out moreOrsola Capovilla-Searle, Duke, Infinitely many Lagrangian Tori in Milnor fibers constructed via Lagrangian Fillings of Legendrian links
One approach to studying symplectic manifolds with contact boundary is to consider Lagrangian submanifolds with Legendrian boundary; in particular, one can study exact Lagrangian fillings of Legendrian links. There are still many open questions on the spaces of exact Lagrangian…
Find out moreAlan Edelman, Massachusetts Institute of Technology, 53 Matrix Factorizations and Random Matrix Theory
In this “something for everyone” talk, we will place the matrix decompositions that are so valuable in all fields of computation in a historical abstract context. It is well known that the singular value decomposition was discussed as far back…
Find out moreJérôme Bolte, Université Toulouse 1 Capitole
Zoom meeting: Link
Find out morePratik Misra, NC State, Combinatorial problems on trees and graphical models
Chair: Seth Sullivant (smsulli2@ncsu.edu, contact for Zoom access)
Find out moreMay 2021
Zev Woodstock, NC State, Recovery of functions from nonlinear observations
Chair: Patrick L. Combettes (plc@math.ncsu.edu, contact for Zoom access)
Find out moreJune 2021
Meng Zhang, NC State, Blood glucose forecasting: Data-driven model, physiological model, and hybrid approaches
Chair: Hien Tran (tran@ncsu.edu) and Kevin Flores (kbflores@ncsu.edu) - contact for Zoom access
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