Seminars and Colloquia by Series

Applying for Graduate School

Series
Other Talks
Time
Monday, September 13, 2010 - 16:30 for 1 hour (actually 50 minutes)
Location
Skiles 269
Speaker
Michael LaceyGT
The why and how of applying to graduate school, with examples of different opportunities drawn from the past 10 years of undergraduate mathematics majors that have gone on to programs in EE, Physics, Applied Math, Statistics, Math, and even Public Policy. Useful for all undergraduate math majors. This is part of the regular Club Math meetings.

Theory/ACO Seminar - Matching in Lopsided Bipartite Graphs and a New Matching Polytope

Series
Other Talks
Time
Friday, August 20, 2010 - 14:00 for 1 hour (actually 50 minutes)
Location
Klaus 1447
Speaker
Kamal JainMicrosoft Research, Redmond, WA

Please Note: This talk should be non-technical except the last few slides. The talk is based on a work done in collaboration with Denis Charles, Max Chickering, Nikhil Devanur, and Manan Sanghi, all from Microsoft.

Lopsided bipartite graphs naturally appear in advertising setting. One side is all the eyeballs and the other side is all the advertisers. An edge is when an advertiser wants to reach an eyeball, aka, ad targeting. Such a bipartite graph is lopsided because there are only a small number of advertisers but a large number of eyeballs. We give algorithms which have running time proportional to the size of the smaller side, i.e., the number of advertisers. One of the main ideas behind our algorithm and as well as the analysis is a property, which we call, monotonic quality bounds. Our algorithm is flexible as it could easily be adapted for different kinds of objective functions. Towards the end of the talk we will describe a new matching polytope. We show that our matching polytope is not only a new linear program describing the classical matching polytope, but is a new polytope together with a new linear program. This part of the talk is still theoretical as we only know how to solve the new linear program via an ellipsoid algorithm. One feature of the polytope, besides being intriguing, is that it has some notion of fairness built in. This is important for advertising since if an advertiser wants to reach 10 million users of type A or type B, advertiser won't necessarily be happy if we show the ad to 10 million users of type A only (though it fulfills the advertising contract in a technical sense).

Additive Combinatorics Mini-Conference

Series
Other Talks
Time
Saturday, June 26, 2010 - 11:00 for 6 hours
Location
Skiles 169
Speaker
Various speakersGeorgia Tech
This mini-conference will feature about six speakers on various topics in additive combinatorics.

East Coast Computer Algebra Day 2010

Series
Other Talks
Time
Saturday, May 15, 2010 - 08:00 for 8 hours (full day)
Location
Emory University
Speaker
East Coast Computer Algebra Day 2010Department of Mathematics and Computer Science, Emory University

Please Note: Anton Leykin is an invited speaker presenting "Certified numerical solving of systems of polynomial equations"

East Coast Computer Algebra Day (ECCAD) is an informal one-day meeting for those active or interested in computer algebra. It provides opportunities to learn and to share new results and work in progress.  The schedule includes invited speakers, a panel discussion, and contributed posters and software demonstrations. Importantly, plenty of time is allowed for unstructured interaction among the participants.  Researchers, teachers, students, and users of computer algebra are all welcome! Visit ECCAD for more details.

The Mathematics of Futurama

Series
Other Talks
Time
Thursday, April 29, 2010 - 19:00 for 1 hour (actually 50 minutes)
Location
Skiles 202
Speaker
Michael LaceyGeorgia Tech
Club Math Presents The Mathematics of Futurama, by Dr. Michael Lacey.

Test - RT 159125

Series
Other Talks
Time
Saturday, April 17, 2010 - 13:07 for 4 hours (half day)
Location
158
Speaker
All Around Nice GuyBuddy and Pal
Abstract expressionism is a post–World War II art movement in American painting, developed in New York in the 1940s. It was the first specifically American movement to achieve international influence and put New York City at the center of the western art world, a role formerly filled by Paris.

Athens/Atlanta Number Theory Seminar - Lecture 1 - Degree three cohomology of function fields of surfaces

Series
Other Talks
Time
Tuesday, April 13, 2010 - 16:00 for 1 hour (actually 50 minutes)
Location
Skiles 269
Speaker
Venapally SureshUniversity of Hyderabad / Emory University
Let k be a global field or a local field. Class field theory says that every central division algebra over k is cyclic. Let l be a prime not equal to the characteristic of k. If k contains a primitive l-th root of unity, then this leads to the fact that every element in H^2(k, µ_l ) is a symbol. A natural question is a higher dimensional analogue of this result: Let F be a function field in one variable over k which contains a primitive l-th root of unity. Is every element in H^3(F, µ_l ) a symbol? In this talk we answer this question in affirmative for k a p-adic field or a global field of positive characteristic. The main tool is a certain local global principle for elements of H^3(F, µ_l ) in terms of symbols in H^2(F µ_l ). We also show that this local-global principle is equivalent to the vanishing of certain unramified cohomology groups of 3-folds over finite fields.

General Audience Lecture - Spaces of positive curvature

Series
Other Talks
Time
Monday, April 12, 2010 - 17:00 for 1 hour (actually 50 minutes)
Location
Klaus 1116W
Speaker
Richard SchoenStanford University
In 1854 Riemann extended Gauss' ideas on curved geometries from two dimensional surfaces to higher dimensions. Since that time mathematicians have tried to understand the structure of geometric spaces based on their curvature properties. It turns out that basic questions remain unanswered in this direction. In this lecture we will give a history of such questions for spaces with positive curvature, and describe the progress that has been made as well as some outstanding conjectures which remain to be settled.

Southeast Geometry Seminar

Series
Other Talks
Time
Monday, April 12, 2010 - 08:00 for 8 hours (full day)
Location
Skiles 269
Speaker
Southeast Geometry SeminarSchool of Mathematics, Georgia Tech
The Southeast Geometry Seminar is a series of semiannual one-day events focusing on geometric analysis. These events are hosted in rotation by the following institutions: The University of Alabama at Birmingham; The Georgia Institute of Technology; Emory University; The University of Tennessee Knoxville. The presentations will include topics on geometric analysis, and related fields, such as partial differential equations, general relativity, and geometric topology. See the Schedule for times and abstracts of talks.

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