Fwd: FW: MSR Talk Series: Arithmetic Intersection and a conjecture of Lauter; Dr. Tonghai Yang - University of Wisconsin at Madison

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Dan Shumow

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Jan 6, 2009, 6:49:19 PM1/6/09
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Talk announcement from Kristin Lauter at MSR.

-Dan


---------- Forwarded message ----------
From: MS Research Lecture Room 1927 (Private) <cf1...@microsoft.com>
Date: Tue, Jan 6, 2009 at 3:43 PM
Subject: FW: MSR Talk Series: Arithmetic Intersection and a conjecture
of Lauter; Dr. Tonghai Yang - University of Wisconsin at Madison
To: William Stein <wst...@gmail.com>, Dan Shumow <shu...@gmail.com>


When: Tuesday, January 13, 2009 10:30 AM-12:00 PM (GMT-08:00) Pacific
Time (US & Canada).
Where: 99/1927 Research Lecture Room B

*~*~*~*~*~*~*~*~*~*

Hi William and Dan,

This is the new talk announcement for Tonghai's talk on Tuesday at
10:30. See you then!

Best,
Kristin


***Please note that the date and time have changed for this talk***

You are invited to attend… please pass on to internal MS employees who
may be interested.
*****************************************************************************************************
WHO: Dr. Tonghai Yang
AFFILIATION: University of Wisconsin at Madison
TITLE: Arithmetic Intersection and a conjecture of Lauter
WHEN: Tue 1/13/2008
WHERE: 99/1927 Research Lecture Room B
TIME: 10:30AM-12PM
HOST: Kristin Lauter
MSRNS: For Live/On Demand viewing availability check http://resnet/msrn
******************************************************************************************************
ABSTRACT:
Motivated by her joint work with H. Cohn on genus two curve
crypotosystem, Lauter gave a very inspiring conjecture on the CM value
of Igusa invariants. They need to compute these values to construct
`good' genus two curves. This conjecture led to study of arithmetic
intersection on an arithmetic 3-fold (Hilbert modular surface).
Recently, I proved an arithmetic intersection formula, which leads
to proof of Lauter's conjecture. The formula also leads to the first
non-abelian generalization of the celebrated Chowla-Selberg formula.

BIO:
Dr. Tonghai Yang is a professor of mathematics at the University of
Wisconsin at Madison. He graduated in 1995 from the University of
Maryland and had his postdoc experience at the Institute for Advanced
Study at Princeton in 1995-96, and at the University of Michigan as
an Hildebrandt research assistant professor in 1996-98. He became a
tenure-track assistant professor at SUNY at Stony Brook in 1998 and
was awarded an American Mathematical Society Centenial Fellowship in
1999 to visit Harvard University. He moved to the University of
Wisconsin at Madison in 2000 and stayed there ever since. He
published about 30 research papers and one joint research book with S.
Kudla and M. Rapoport at the prestigious `Annals of Mathematics
Studies' series.

Dr. Yang is an editor of the` Quarterly Journal of Pure and Applied
Mathematics' and is on the advisory board of `Abhandlungen aus dem
mathematischen Seminar der Universitaet Hamburg'.

Dr. Yang is the founder of the public charity Hometown Education Foundation.

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