# Difference between revisions of "Analysis Seminar"

Jump to: navigation, search

The 2021-2022 Analysis Seminar will be organized by David Beltran and Andreas Seeger. Some of the talks will be in person (room Van Vleck B139) and some will be online. The regular time for the Seminar will be Tuesdays at 4:00 p.m. (in some cases we will schedule the seminar at different times, to accommodate speakers).

Zoom links will be sent to those who have signed up for the Analysis Seminar List. If you would like to subscribe to the Analysis seminar list, send a blank email to analysis+join (at) g-groups (dot) wisc (dot) edu. If you are from an institution different than UW-Madison, please send as well as an additional email to David and Andreas (dbeltran, seeger at math (dot) wisc (dot) edu) to notify the request.

If you'd like to suggest speakers for the fall semester please contact David and Andreas.

# Analysis Seminar Schedule

 date speaker title host(s) institution September 21 Dóminique Kemp UW-Madison Decoupling by way of approximation Sponsor September 28 Jack Burkart UW-Madison Title Sponsor October 5 Giuseppe Negro University of Birmingham Title Sponsor October 12 Rajula Srivastava UW Madison Title Sponsor October 19 Itamar Oliveira Cornell University Title Sponsor October 26 Person Institution Title Sponsor November 2 Person Institution Title Sponsor November 9 Person Institution Title Sponsor November 16 Rahul Parhi UW Madison (EE) Title Sponsor November 30 Person Institution Title Sponsor December 7 Person Institution Title Sponsor December 14 Person Institution Title Sponsor Date Person Institution Title Sponsor

# Abstracts

### Dóminique Kemp

Decoupling by way of approximation

Since Bourgain and Demeter's seminal 2017 decoupling result for nondegenerate hypersurfaces, several attempts have been made to extend the theory to degenerate hypersurfaces $M$. In this talk, we will discuss using surfaces derived from the local Taylor expansions of $M$ in order to obtain "approximate" decoupling results. By themselves, these approximate decouplings do not avail much. However, upon considerate iteration, for a specifically chosen $M$, they culminate in a decoupling partition of $M$ into caps small enough either as originally desired or otherwise genuinely nondegenerate at the local scale. A key feature that will be discussed is the notion of approximating a non-convex hypersurface $M$ by convex hypersurfaces at various scales. In this manner, contrary to initial intuition, non-trivial $\ell^2$ decoupling results will be obtained for $M$.

Title

Abstract

Title

Abstract

Title

Abstract

Title

Abstract

# Extras

Graduate Student Seminar: