Wuchen Li : Mean-Field Games for Scalable Computation and Diverse Applications
- Applied Math and Analysis ( 213 Views )Mean field games (MFGs) study strategic decision-making in large populations where individual players interact via specific mean-field quantities. They have recently gained enormous popularity as powerful research tools with vast applications. For example, the Nash equilibrium of MFGs forms a pair of PDEs, which connects and extends variational optimal transport problems. This talk will present recent progress in this direction, focusing on computational MFG and engineering applications in robotics path planning, pandemics control, and Bayesian/AI sampling algorithms. This is based on joint work with the MURI team led by Stanley Osher (UCLA).
Boris Malomed : Spatiotemporal optical solitons: an overview
- Applied Math and Analysis ( 143 Views )An introduction to the topic of multi-dimensional optical solitons ("light bullets"), localized simultaneously in the direction of propagation (as temporal solitons) and in one or two transverse directions (as spatial solitons) will be given, including a review of basic theoretical and experimental results. Also considered will be connection of this topic to the problem of the creation of multidimensional solitons in Bose-Einstein condensates. In both settings (optical and BEC), the main problem is stabilization of the multidimensional solitons against the spatiotemporal collapse. The stabilization may be provided in various ways (in particular, by means of an optical lattice in BEC). The talk will partly based on a review article: B.A. Malomed, D. Mihalache, F. Wise, and L. Torner, "Spatiotemporal optical solitons", J. Optics B: Quant. Semics. Opt. 7, R53-R72 (2005).