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Mathematics Colloquium

All colloquia are on Fridays at 4:00 pm in Van Vleck B239, unless otherwise indicated.

Fall 2013

date speaker title host(s)
Sept 6 Temporarily Reserved Ellenberg
Sept 13
Sept 20 Valerio Toledano Laredo (Northeastern) Gurevich
Wed, Sept 25 Ayelet Lindenstrauss Meyer
Sept 27 (Distinguished lecture) Jim Demmel (Berkeley) Gurevich
Oct 4 Frank Sottile (Texas A&M) Caldararu
Oct 11 Amie Wilkinson (Chicago) WIMAW (Cladek)
Oct 15 Reserved for a distinguished lecture Valko
Oct 18 No colloquium due to the distinguished lecture
Oct 25 Paul Garrett (Minnesota) Gurevich
Nov 1 Allison Lewko (Microsoft Research New England) Stovall
Nov 8 Tim Riley (Cornell) Dymarz
Nov 15 and later Reserved Street

Spring 2014

date speaker title host(s)
Jan 24
Jan 31 Urbashi Mitra (USC) Gurevich
Feb 7 David Treumann (Boston College) Street
Feb 14
Feb 21
Feb 28
March 7
March 14
March 21 Spring Break No Colloquium
March 28 Michael Lacey (GA Tech) The Two Weight Inequality for the Hilbert Transform Street
April 4 Kate Jushchenko (Northwestern) Dymarz
April 11 Risi Kondor (Chicago) Gurevich
April 18 (Wasow Lecture) Christopher Sogge (Johns Hopkins) A. Seeger
April 25 Charles Doran(University of Alberta) Song
May 2 Lek-Heng Lim (Chicago) Boston
May 9 Rachel Ward (UT Austin) WIMAW


March 28: Michael Lacey (GA Tech)

The Two Weight Inequality for the Hilbert Transform

The individual two weight inequality for the Hilbert transform asks for a real variable characterization of those pairs of weights (u,v) for which the Hilbert transform H maps L^2(u) to L^2(v). This question arises naturally in different settings, most famously in work of Sarason. Answering in the positive a deep conjecture of Nazarov-Treil-Volberg, the mapping property of the Hilbert transform is characterized by a triple of conditions, the first being a two-weight Poisson A2 on the pair of weights, with a pair of so-called testing inequalities, uniform over all intervals. This is the first result of this type for a singular integral operator. (Joint work with Sawyer, C.-Y. Shen and Uriate-Tuero)

Past talks

Last year's schedule: Colloquia 2012-2013