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Algebra, Geometry and Cryptology Seminar

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Fall 2017
Fridays, 3:00-3:50
Location: MB124

The Algebra, Geometry and Cryptology (AGC) Seminar meets on selected Fridays, dates indicated below. Everybody interested is welcome to attend and participate (enrollment is not required). The seminar is co-organized by Zach Teitler and Marion Scheepers. If you wish to present in the seminar or need information, please contact Zach Teitler at zteitler@boisestate.edu.

August 25:

Open problems & Planning

September 1:

Topology Seminar

September 8:

Scott Andrews, Boise State University
The $q,t$-Catalan numbers
The Catalan numbers $C_n$ enumerate many different combinatorial objects, including triangulations of an $(n+2)$-gon, 123-avoiding permutations, and Dyck paths. There are two $q$-analogues of the Catalan numbers, both of which turn out to be specializations of the more general $q,t$-Catalan numbers. In this talk I will introduce the Catalan numbers and the idea of a $q$-analogue of a number and I will define the $q,t$-Catalan numbers.

September 15:

Topology Seminar

September 22:

TBA

September 29:

TBA

October 6:

TBA

October 13:

Aaron Bertram, University of Utah
The Tropical Nullstellensatz
The (weak) Hilbert Nullstellensatz states that if a system of polynomial equations in several variables has no complex solutions then the equation $1 = 0$ must be a combination of the polynomial equations in the system. In this talk, I will discuss a version of this theorem that holds when complex numbers are replaced with tropical numbers. This is joint work with Rob Easton.

October 20:

Topology Seminar

October 27:

TBA

November 3:

TBA

November 10:

TBA

November 17:

TBA

November 24:

No seminar meeting (Thanksgiving holiday)

December 1:

TBA

December 8:

TBA

Previous semesters:

Spring 2017 Fall 2016 Spring 2016
Fall 2015 Spring 2015 Fall 2014 Spring 2014
Fall 2013 Spring 2013 Fall 2012 Spring 2012
Fall 2011 Spring 2011 Fall 2010