Math 921, Fall 2018 - Graduate Seminar in Analysis

Organizers: Joris Roos and Andreas Seeger


Unless otherwise specified, talks take place Wednesdays at 4 pm in VV B131.

Schedule of talks

Date Speaker Title
Tue, Sep 18
4 pm, VV B139
Liwei Jiang On the general translates of general dyadic system on R
Sep 19 Lingxiao Zhang Transference principle for Fourier multipliers
Tue, Sep 25 Ziming Shi Second-order elliptic equations with parameter
Sep 26 Liwei Jiang Real variable proof of the Stein-Tomas theorem
Oct 3, Oct 10 Zhixuan Zhang Constructions of Salem measures
Oct 17, Oct 24 Edwin Baeza Necessary and sufficient conditions for radial Fourier multipliers
Tue, Oct 30 (4 pm, B139),
Oct 31
Rajula Srivastava Guth's short proof for multilinear Kakeya
Nov 7 (5 pm) Ben Bruce Multilinear Kakeya implies multilinear adjoint restriction, Part I
Nov 14 Jeremy Schwend Multilinear Kakeya implies multilinear adjoint restriction, Part II
Tue, Nov 20 Geoff Bentsen The cone multiplier in R3, Part I
Nov 28 Changkeun Oh The cone multiplier in R3, Part II
Dec 4 Michel Alexis Endpoint estimates for Bochner-Riesz multipliers, Part I
tba. Bingyang Hu Endpoint estimates for Bochner-Riesz multipliers, Part II

Abstracts

Liwei Jiang: On the general translates of general dyadic system on R

Abstract: Many techniques in harmonic analysis use the fact that a continuous object can be written as a sum (or an intersection) of dyadic counterparts, as long as those counterparts belong to a distinct dyadic system. Here we generalize the notion of distinct dyadic system and explore when it occurs, leading to some new and perhaps surprising classifications. This work is a joint work with Tess Anderson, Bingyang Hu, Connor Olson and Zeyu Wei.

Ziming Shi: Second-order elliptic equations with parameter

Abstract: We consider second-order elliptic equations with variable coefficients and right-hand side on a family of domains, satisfying some variable oblique-derivative type boundary conditions. We shall show that if all these depend "smoothly" on some parameter in a compact set, then the solution also depends on the parameter "smoothly". We follow I.N.Vekua's approach of reducing the problem to a complex analytic one, and introduce the notion of "generalized analytic function". Our result is a generalization of Bertrand and Gong's earlier work on the same problem, formulated for the Laplacian equation with Dirichlet and Neumann boundary conditions.