## Seminar Categories

- Applied and Computational Math Colloquium (1)
- Applied and Computational Mathematics Seminar (2)
- Climate Seminar (30)
- Colloquium (5)
- Commutative Algebra Seminar (10)
- Differential Geometry and Symplectic Topology Seminar (19)
- IMA Data Science Lab Seminar (4)
- IMA/MCIM Industrial Problems Seminar (4)
- MCFAM Seminar (6)
- Probability Seminar (3)
- Special Events and Seminars (9)
- Student Number Theory Seminar (5)
- Topology Seminar (8)

## Current Series

Thu Sep 05 |
## Colloquium3:35pm - Vincent Hall 16Colloquium - Canceled Alina Chertock, NSCU Chemotaxis is a movement of micro-organisms or cells towards the areas of high concentration of a certain chemical, which attracts the cells and may be either produced or consumed by them. In its simplest form, the chemotaxis model is described by a system of nonlinear PDEs: a convection-diffusion equation for the cell density coupled with a reaction- diffusion equation for the chemoattractant concentration. It is well-known that solutions of such systems may develop spiky structures or even blow up in finite time provided the total number of cells exceeds a certain threshold. This makes development of numerical methods for chemotaxis systems extremely delicate and challenging task. In this talk, I will present a family of high-order numerical methods for the Keller-Segel chemotaxis system and several related models. Applications of the proposed methods to to multi-scale and coupled chemotaxisÂ–fluid system and will also be discussed. |

Thu Sep 19 |
## Colloquium3:35pm - Vincent Hall 16The Langlands Program: An Introduction and Recent Progress Solomon Friedberg,, Boston College The Langlands Program, connecting algebra, analysis and geometry in diverse ways, is foundational to modern number theory. I will introduce this program and indicate some recent progress. As we shall see, a great deal still remains to be done. |

Thu Oct 17 |
## Colloquium3:35pm - Vincent Hall 16Hopf monoids relative to a hyperplane arrangement Marcelo Aguiar, Cornell University The talk is based on recent and ongoing work with Swapneel |

Thu Oct 31 |
## Colloquium3:35pm - Vincent Hall 16Differential operators on invariant rings Anurag Singh, University of Utah Work of Levasseur and Stafford describes the rings of differential operators on various classical invariant rings of characteristic zero; in each of these cases, the differential operators form a simple ring. Towards an attack on the simplicity of rings of differential operators on invariant rings of reductive groups over the complex numbers, Smith and Van den Bergh asked if reduction modulo p works for differential operators in this context. In joint work with Jack Jeffries, we establish that this is not the case for various classical groups. |

Thu Nov 14 |
## Colloquium3:35pm - Vincent Hall 16Colloquium Joe Kramer-Miller, UC Irvine |

Thu Mar 19 |
## Colloquium3:35pm - Vincent Hall 16Colloquium Mauro Maggioni, Ordway Visitor, Johns Hopkins University |

Thu Apr 23 |
## Colloquium3:35pm - Vincent Hall 16Colloquium Dionisios Margetis - Ordway Visitor, University of Maryland, College Park |