A conference on numerical analysis and scientific computing for graduate students and postdocs from the Mid-Atlantic region.
Keynote Speaker
Michael Overton,
Nonsmooth, Nonconvex Optimization: |  |
Abstract
In many applications one wishes to minimize an objective function that is not convex and is not differentiable at its minimizers. We discuss two algorithms for minimization of nonsmooth, nonconvex functions. Gradient Sampling is a simple method that, although computationally intensive, has a nice convergence theory. The method is robust and the convergence theory has recently been extended to constrained problems. BFGS is a well known method, developed for smooth problems, but which is remarkably effective for nonsmooth problems too. Although our theoretical results in the nonsmooth case are quite limited, we have made some remarkable empirical observations and have had broad success in applications. Limited Memory BFGS is a popular extension for large problems, and it is also applicable to the nonsmooth case, although our experience with it is more mixed. Throughout the talk we illustrate the ideas through examples, some very easy and some very challenging. Our work is with Jim Burke (U. Washington) and Adrian Lewis (Cornell).
The Conference
This one-day meeting will start at 10am to allow same-day travel.
It will be held in Room 617 Wachman Hall, Temple University, 1805 North Broad street, just north of Montgomery Avenue (see directions on right margin).
It will be an opportunity for graduate students and postdocs to present their research, and to meet other researchers.
There will be contributed talks and a poster session.
There will be no registration fee. In order to guarantee appropriate space in the lecture rooms, we ask every participant to please register in advance, even if you are not planning to give a talk.
Lunch will be provided.
Conference Poster
You can download a conference announcement poster.
Schedule
| 9:15- 9:50 | Registration and breakfast (provided) |
| 9:50-10:00 | Opening remarks |
| 10:00-11:00 | Presentations (Multigrid) |
| 11:10-11:15 | Coffee Break |
| 11:15-12:45 | Presentations (Analysis and Numerical Analysis) |
| 12:45-14:00 | Posters and lunch (provided) |
| 14:00-15:00 | Keynote lecture (Michael Overton) |
| 15:00-15:15 | Coffee break |
| 15:15-16:15 | Presentations (Turbulence and Stochastic PDE) |
| 16:15-16:30 | Coffee break |
| 16:30-17:30 | Presentations (Bio/Medical Applications) |
| 17:30-17:40 | Closing remarks |
| 18:15-20:00 | Group dinner (attendance optional) |
Speakers
| Multigrid | |||
|---|---|---|---|
| Tengfei | Su | University of Maryland College Park | A low-rank multigrid method for the stochastic steady-state diffusion problem |
| Giacomo | Capodaglio | Texas Tech University | Convergence estimates for a multigrid algorithm with domain decomposition smoother |
| Analysis and Numerical Analysis | |||
| Yajie | Zhang | Penn State University | A regularity analysis of parabolic transmission problem on polygonal domain |
| Thomas | Brown | University of Delaware | Interaction of acoustic waves with a piezoelastic solid |
| Wenfang | Xu | Penn State University | Adaptive aggregation on graphs |
| Turbulence and Stochastic PDE | |||
| Ali | Pakzad | University of Pittsburgh | Damping functions correct over-dissipation of the Smagorinsky model |
| Kookjin | Lee | University of Maryland College Park | A preconditioned low-rank projection method with a rank-reduction scheme for stochastic partial differential equations |
| Bio/Medical Applications | |||
| Sara | Calandrini | Texas Tech University | Numerical simulation of fluid-structure interaction problems with application to hemodynamics |
| Gregory | Javens | CUNY Hunte College | A model for chemotactic bacteria |
Posters
| Shumo | Cui | Temple University | Stable traveling solutions of traffic models: A numerical investigation |
| Shukai | Du | University of Delaware | Building a computational code for three dimensional viscoelastic wave simulation (joint poster) |
| Hasan | Eruslu | University of Delaware | Building a computational code for three dimensional viscoelastic wave simulation (joint poster) |
| Jose | Garay | Temple University | Asynchronous optimized Schwarz method for Poisson equation on rectangular Domains |
| Stephan | Grein | Temple University | A multiscale model of synaptic contact between brain cells |
| Emmanuel | Olutayo | African Institute for Mathematical Sciences | Simulation of cerebrospinal fluid using finite pointset method |
| Shelby | Stanhope | Temple University | Existence and uniqueness for the inverse problem for linear and linear-in-parameters dynamical systems |
| Giordano | Tierra | Temple University | Analysis of an augmented mixed finite element method for the Navier-Stokes |
| Dong | Zhou | Temple University | Order reduction in high-order implicit Runge-Kutta methods for initial boundary value problems |
Hotel Information
Please feel free to contact us for information on accommodation.
Contact
Email: naday -at- temple.edu
Organizers
Benjamin Seibold and Daniel B. Szyld
Sponsors
Sponsored by the Department of Mathematics, the College of Science and Technology, and the Graduate School, Temple University.