• Speaker: Yilin Wang, MIT
• Title: (Cancelled)
• Date: 04/01/2020
• Time: 4:10 PM - 5:00 PM
• Place: C304 Wells Hall

No abstract available.

• Speaker: 
• Title: Cancelled
• Date: 04/03/2020
• Time: 4:10 PM - 5:00 PM
• Place: C304 Wells Hall

No abstract available.

• Speaker: Vladimir Fock, Strassbourgh
• Title: Higher measured laminations and tropical curves. Zoom: https://msu.zoom.us/j/451121888
• Date: 04/09/2020
• Time: 9:30 AM - 10:30 AM
• Place: C204A Wells Hall

We shall define a notion of a higher lamination - a graph embedded into a Riemann surface with edges coloured by generators of an affine Weyl group. This notion generalises the notion of the ordinary integral measured lamination and on the other hand of a tropical curve and can be constructed out of a integral Lagrangian submanifold of the cotangent bundle.

• Speaker: Adrian Ioana, UC San Diego
• Title: TBD
• Date: 04/09/2020
• Time: 4:10 PM - 5:00 PM
• Place: C304 Wells Hall

No abstract available.

• Speaker: 
• Title: Cancelled
• Date: 04/10/2020
• Time: 4:10 PM - 5:00 PM
• Place: C304 Wells Hall

No abstract available.

• Speaker: Annalaura Stingo, UC Davis
• Title: (Cancelled) Almost global-well posedness for quasilinear strongly coupled wave-Klein-Gordon systems in two space dimension
• Date: 04/15/2020
• Time: 4:10 PM - 5:00 PM
• Place: C304 Wells Hall

In this talk we will prove the almost global existence of small solutions of strongly-coupled wave-Klein-Gordon systems in 2+1 space-time dimension. We consider quadratic quasilinear null form type nonlinearities, and consider initial data that are only mildly decaying at infinity and have minimal regularity. The proof relies on a systematical analysis of the nonlinearities, and combines energy estimates localized to dyadic space-time regions and pointwise interpolation estimates within the same regions. This is a joint work with M. Ifrim.

• Speaker: Alexander Varchenko
• Title:  Positive populations. Zoom: https://msu.zoom.us/j/451121888
• Date: 04/16/2020
• Time: 9:30 AM - 10:30 AM
• Place: C204A Wells Hall

I will discuss a positive structure on the varieties of critical points of master functions for the KZ differential equations. The structure is introduced in my recent preprint with V. Schechtman. The positive structure comes as a combination of the ideas from classical works by G. Lusztig and my previous work with E. Mukhin on the relations between these varieties of critical points and the flag varieties.

• Speaker: Alexander Varchenko, University of North Carolina at Chapel Hill
• Title: TBD
• Date: 04/16/2020
• Time: 4:10 PM - 5:00 PM
• Place: C304 Wells Hall

No abstract available.

• Speaker: 
• Title: Cancelled
• Date: 04/17/2020
• Time: 4:10 PM - 5:00 PM
• Place: C304 Wells Hall

TBD

• Speaker: Rafe Mazzeo, Stanford University
• Title: TBD
• Date: 04/23/2020
• Time: 4:10 PM - 5:00 PM
• Place: C304 Wells Hall

No abstract available.

• Speaker: J. Maurice Rojas, Texas A&M University and NSF
• Title: TBA
• Date: 04/27/2020
• Time: 3:00 PM - 4:00 PM
• Place: C517 Wells Hall

No abstract available.