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Today, Friday, November 17, 2017

Combinatorics Seminar  Questions or comments?

Posted November 15, 2017

4:30 pm - 5:30 pm Lockett 276

Josh Fallon, LSU
Criticality of Counterexamples to Edge-hamiltonicity on the Klein Bottle

Tutte and Thomas and Yu proved that 4-connected planar and projective-planar graphs, respectively, are hamiltonian. Grunbaum and Nash-Williams conjecture that 4-connected toroidal and Klein bottle graphs are hamiltonian. Thomassen constructed counterexamples to edge-hamiltonicity of four-connected toroidal and Klein bottle graphs. Ellingham and Marshall contribute to the characterization of four-connected toroidal graphs in which some edge is not on a hamilton cycle, showing a sort of criticality of Thomassen's counterexamples and their generalizations. In this talk, I will discuss the progress made toward determining hamiltonicity of 4-connected graphs on the torus and Klein bottle and show in Thomassen's Klein bottle counterexamples a criticality similar to that in toroidal graphs.

Tuesday, November 28, 2017

Algebra and Number Theory Seminar  Questions or comments?

Posted August 23, 2017
Last modified October 20, 2017

3:00 pm - 3:50 pm
Cancelled

Li Guo, Rutgers University at Newark
TBD


Algebra and Number Theory Seminar  Questions or comments?

Posted November 12, 2017

3:10 pm - 4:00 pm

William Casper, Louisiana State University
TBD

Wednesday, November 29, 2017

Informal Topology Seminar  Questions or comments?

Posted August 23, 2017
Last modified October 24, 2017

10:30 am - 12:00 pm Lockett 233

Rob Quarles, Louisiana State University
TBD


Topology Seminar  Seminar website

Posted August 23, 2017
Last modified September 6, 2017

3:30 pm - 4:30 pm Lockett 233

Shelly Harvey, Rice University
TBD

Wednesday, December 6, 2017

Harmonic Analysis Seminar  Abstract and additional information

Posted November 14, 2017

3:30 pm - 4:20 pm Lockett 285

Anton Zeitlin, LSU
Enumerative geometry and quantum integrable systems

Abstract: The miraculous correspondence between 3-dimensional Gauge theory and integrable models based on quantum groups was observed by Nekrasov and Shatashvili in 2009. That discovery led to a lot of interesting developments in mathematics, in particular in enumerative geometry, bringing a new life to older ideas of Givental, and enriching it with flavors of geometric representation theory via the results of Braverman, Maulik, Okounkov and many others. In this talk I will focus on recent breakthroughs, originating from the work of Okounkov on the subject, leading to proper mathematical understanding of Nekrasov-Shatashvili original papers.


Harmonic Analysis Seminar  Abstract and additional information

Posted November 14, 2017

3:30 pm - 4:20 pm Lockett 285

Anton Zeitlin, LSU
Enumerative geometry and quantum integrable systems

Abstract: The miraculous correspondence between 3-dimensional Gauge theory and integrable models based on quantum groups was observed by Nekrasov and Shatashvili in 2009. That discovery led to a lot of interesting developments in mathematics, in particular in enumerative geometry, bringing a new life to older ideas of Givental, and enriching it with flavors of geometric representation theory via the results of Braverman, Maulik, Okounkov and many others. In this talk I will focus on recent breakthroughs, originating from the work of Okounkov on the subject, leading to proper mathematical understanding of Nekrasov-Shatashvili original papers.

Wednesday, February 28, 2018

Topology Seminar  Seminar website

Posted November 13, 2017

3:30 pm - 4:30 pm Lockett 233

Ivan Levcovitz, CUNY Graduate Center
TBD

Wednesday, March 7, 2018

Topology Seminar  Seminar website

Posted October 18, 2017

3:30 pm - 4:30 pm Lockett 233

Bulent Tosun, University of Alabama
TBD

Wednesday, March 14, 2018

Topology Seminar  Seminar website

Posted October 18, 2017

3:30 pm - 4:30 pm

Ina Petkova, Dartmouth College
TBD

Wednesday, April 4, 2018

Pasquale Porcelli Lecture Series  Special Lecture Series

Posted November 7, 2017

3:30 pm - 4:30 pm tba

Irene Fonseca, Carnegie Mellon University
Porcelli Lecture 1


Topology Seminar  Seminar website

Posted November 12, 2017

3:30 pm - 4:30 pm Lockett 233

Miriam Kuzbary, Rice University
TBD

Thursday, April 5, 2018

Pasquale Porcelli Lecture Series  Special Lecture Series

Posted November 7, 2017

2:30 pm - 3:30 pm tba

Irene Fonseca, Carnegie Mellon University
Porcelli Lecture 2


Pasquale Porcelli Lecture Series  Special Lecture Series

Posted November 7, 2017

4:10 pm - 5:00 pm tba

Irene Fonseca, Carnegie Mellon University
Porcelli Lecture 3