Algebra/Number Theory/Combinatorics Seminars

The Algebra/Number Theory/Combinatorics Seminar of the Claremont Colleges meets on Tuesdays, 12:15 - 1:10 PM.

In the Spring 2013 semester, we are meeting in Millikan 208, Pomona College, Department of Mathematics.

The Millikan Laboratory of Pomona College is located at 610 N. College Ave. (Corner of 6th and College Ave.) Click here for a map of the Pomona Campus.

For more information about the Seminar, or to suggest speakers, contact Lenny Fukshansky (email: lenny at cmc dot edu) or Gizem Karaali (email: Gizem dot Karaali at pomona dot edu) and visit HERE for the past seminar archives.

Spring 2013 Algebra/Number Theory/Combinatorics Seminars

Date:	Title:	Speaker:
Jan/29/2013	Supercharacters on abelian groups	Stephan Garcia (Pomona College)
Feb/12/2013	Combinatorics and card shuffling	Sami Assaf (USC)
Feb/19/2013	How Hot is Your Geometry? A Tropical Excursion	Gizem Karaali (Pomona College)
Feb/26/2013	Algorithms for the densest sub-lattice problem	Daniele Micciancio (UC San Diego)
Mar/05/2013	Some configurations of planes in projective spaces	John Levitt (Occidental College)
Mar/12/2013	Formal convolution Hecke algebras and oriented cohomology theories	Alex Hoffnung (Temple University)
Mar/26/2013	Shadows and intersections	Ameerah Chowdhury (UCLA)
Apr/02/2013	Locally finite z-homogeneous graphs	Wai Yan Pong (California State University Dominguez Hills)
Apr/09/2013	Erdos-Rademacher problems in extremal set theory	Shagnik Das (UCLA)
Apr/16/2013	Cayley graphs in surprising places	Rena Levitt (Pomona College)
Apr/23/2013	Complexity of lattice problems on cyclic lattices	Lenny Fukshansky (CMC)
Apr/30/2013	Cyclotomic extensions of the rational function field over a finite field	Hiren Maharaj (CMC)
May/07/2013	Double or nothing	Mark Huber (CMC)

Fall 2012 Algebra/Number Theory/Combinatorics Seminars

Date:	Title:	Speaker:
Sep/11/2012	Shuffling with rules: drawing uniformly from linear extensions of a partial order	Mark Huber (Claremont McKenna College)
Sep/18/2012	Hall algebras are primitively generated	Jacob Greenstein (UC Riverside)
Sep/25/2012	Polynomial Birack Module Enhancements	Sam Nelson (CMC)
Oct/02/2012	On a counting problem in number theory	Lenny Fukshansky (CMC)
Oct/09/2012	Jet schemes of determinantal varieties	Al Sethuraman (Cal State Northridge)
Oct/16/2012	Abelian Pattern Avoidance in Partial Words	Ben De Winkle (Pomona College)
Oct/30/2012	Refinements of Craig’s lattices and new dense lattice packings	Carmelo Interlando (San Diego State University)
Nov/06/2012	Semidirect products, group structure, and expander families	Mike Krebs (Cal State LA)
Nov/13/2012	Harmonic analysis on finite groups using frequency spaces	Michael Orrison (Harvey Mudd College)
Nov/27/2012	Hypercube orientations with degree restrictions, or What color is my hat?	Steve Butler (Iowa State University)
Dec/04/2012	Algebraic geometric codes and spaces of modular forms	Hiren Maharaj (Clemson University)

Spring 2012 Algebra/Number Theory/Combinatorics Seminars

Date:	Title:	Speaker:
Jan/24/2012	A gadget for reducing the Ising model to matchings	Mark Huber (CMC)
Jan/31/2012	Bridging matrix recovery gaps using manifolds	Deanna Needell (CMC)
Feb/07/2012	Lattices must be fat -- no skinny lattice for you!	Lenny Fukshansky (CMC)
Feb/14/2012	Birack projection invariants	Sam Nelson (CMC)
Feb/21/2012	The word problem for quandles	Rena Levitt (Pomona College)
Feb/28/2012	Doubly adapted bases for the symmetric group	Mike Orrison (HMC)
Mar/06/2012	Recent problems and results about heights of algebraic numbers	Jeffrey Vaaler (University of Texas at Austin)
Mar/20/2012	Polite numbers and length spectra	Wai Yan Pong (California State University Dominguez Hills)
Mar/27/2012	Topologies on spaces of subgroups and Schreier graphs, totally non-free actions, and IRS.	Rostislav Grigorchuk (Texas A&M University)
Apr/03/2012	Supercharacters and their superpowers	Gizem Karaali (Pomona College)
Apr/10/2012	The q,t-Catalan numbers and Hyperplane Arrangements	Matt Davis (HMC)
Apr/17/2012	The shape of sublattices of Z^m	Wolfgang Schmidt (University of Colorado at Boulder)
Apr/24/2012	Introduction to Pipe Theory and certain Diophatine equation	Willie Wu (CGU)

Fall 2011 Algebra/Number Theory/Combinatorics Seminars

Date:	Title:	Speaker:
Sep/13/2011	Gromov-Witten Theory of P^1xP^1xP^1	Dagan Karp (Harvey Mudd College)
Sep/20/2011	The Stern Sequence	Bruce Reznick (University of Illinois at Urbana Champaign)
Sep/27/2011	Invariant Ideals from the Alexander Virtual Biquandle	Sam Nelson (Claremont McKenna College)
Oct/04/2011	Analytic Galois Automorphisms	Ghassan Sarkis (Pomona College)
Oct/11/2011	Algebraic Voting Theory: New Insights, Connections, and Questions	Mike Orrison (Harvey Mudd College)
Oct/18/2011	The Prime Number Theorem for graphs and coverings	Audrey Terras (University of California at San Diego)
Oct/25/2011	When is a variety a quotient of a smooth variety by a finite group?	Anton Geraschenko (California Institute of Technology)
Nov/01/2011	What are #P complete problems?	Mark Huber (Claremont McKenna College)
Nov/15/2011	Using Lexicographical Orderings to Find Automatic Structures	Rena Levitt (Pomona College)
Nov/22/2011	Diamond-Free Subsets of Linear Lattices	Shahriar Shahriari (Pomona College)
Nov/29/2011	Search bounds with respect to height in linear and quadratic spaces	Glenn Henshaw (Wesleyan University)
Dec/06/2011	Strong nonnegativity and sums of squares on real varieties	Mohamed Omar (California Institute of Technology)

Spring 2011 Algebra/Number Theory/Combinatorics Seminars

Date:	Title:	Speaker:
Jan/25/2011	On well-rounded ideal lattices	Lenny Fukshansky (CMC)
Feb/01/2011	Cohomology and support varieties for restricted Lie superalgebras	Irfan Bagci (UC Riverside)
Feb/08/2011	Toric Symmetry of P^3 in Gromov-Witten theory and Donaldson-Thomas theory	Dagan Karp (Harvey Mudd College)
Feb/15/2011	Classical Kloosterman sums: Representation theory, magic squares, and Ramanujan multigraphs	Gizem Karaali (Pomona College)
Feb/22/2011	Combinatorics of Surface Deformations	Satyan Devadoss (Williams College)
Mar/01/2011	The Rack Algebra	Sam Nelson (Claremont McKenna College)
Mar/08/2011	Birack Modules, Kei modules and Shadow Modules	Sam Nelson (Claremont McKenna College)
Mar/22/2011	Solving all lattice problems in deterministic single exponential time	Daniele Micciancio (UC San Diego)
Mar/29/2011	Partially recursive acceptance/rejection	Mark Huber (Claremont McKenna College)
Apr/05/2011	Solving the word problem with using formal languages	Rena Levitt (Claremont McKenna College)
Apr/12/2011	Diophantine equations of matching games	Wai Yan Pong (California State University Dominguez Hills)
Apr/19/2011	Perturbed Nim	Scott Garrabrant (Pitzer College)
Apr/26/2011	The Jurassic Park of abelian functions	Yaacov Kopeliovich (MEAG NY)
Apr/29/2011	Recent Work on the Extremal Problems of Families of Subsets with a Forbidden Subposet	Wei-Tian Li (University of South Carolina)
May/03/2011	Nonnegative k-sums, fractional covers, and probability of small deviations	Hao Huang (UCLA)

Spring 2010 Algebra/Number Theory/Combinatorics Seminars

Date:	Title:	Speaker:
Jan/26/2010	Organizational meeting	Everyone
Feb/02/2010	Revisiting the hexagonal lattice: on optimal lattice circle packing	Lenny Fukshansky (CMC)
Feb/09/2010	Counting points on hypersurfaces	Daqing Wan (UC Irvine)
Feb/16/2010	Disjoint chains and matchings in posets	Shahriar Shahriari (Pomona College)
Feb/23/2010	Quadratic forms over number rings	Larry Gerstein (UC Santa Barbara)
Mar/02/2010	Blackboard biracks	Sam Nelson (CMC)
Mar/09/2010	Sums of triangular numbers	Wai Kiu Chan (Wesleyan University)
Mar/23/2010	Incomplete character sums over finite fields	Mei-Chu Chang (UC Riverside)
Mar/30/2010	Approximating the permanent of a matrix with nonnegative entries	Mark Huber (Claremont McKenna College)
Apr/06/2010	Random surfaces	Nicholas Pippenger (HMC)
Apr/13/2010	Extremal and Probabilistic Combinatorics	Choongbum Lee (UCLA)
Apr/20/2010	Faces of weight polytopes and a generalization of a result of Vinberg	Tim Ridenour (UC Riverside)
Apr/27/2010	The combinatorialization of linear recurrences	Art Benjamin (HMC)

Fall 2010 Algebra/Number Theory/Combinatorics Seminars

Date:	Title:	Speaker:
Sep/07/2010	Generators for groups of units in orders in rational quaternion algebras and a problem in number theory	Mehrdad Shahshahani (Institute for Research in Fundamental Sciences (IPM), Tehran, Iran)
Sep/14/2010	Combinatorial Hopf algebras: A Common Playground for Algebra and Combinatorics	Gizem Karaali (Pomona College)
Sep/21/2010	Representations of the affine Hecke algebra	Matt Davis (Harvey Mudd College)
Sep/28/2010	How I learned to see	Vin de Silva (Pomona College)
Oct/05/2010	Cutsets in the Boolean and Linear Lattices	Shahriar Shahriari (Pomona College)
Oct/12/2010	Global Weyl modules, BGG duality and the Catalan numbers	Nathan Manning (UC Riverside)
Oct/26/2010	Integral bases for the universal enveloping algebra of g tensor A	Sam Chamberlin (UC Riverside)
Nov/02/2010	Toric Symmetry of P^3 and Enumerative Geometry	Dhruv Ranganathan and Paul Riggins (Harvey Mudd College)
Nov/09/2010	Denominator identities for Lie superalgebras	Shifra Reif (Weizmann Institute of Science)
Nov/16/2010	The etale index of division algebras	Benjamin Antieau (UCLA)
Nov/23/2010	Representation Theory in Machine Learning	Risi Kondor (Caltech)
Nov/30/2010	Generalizing the Condorcet Criterion	Michael Orrison (Harvey Mudd College)
Dec/07/2010	Polytopes, Polynomials, and Picard-Fuchs Equations	Ursula Whitcher (Harvey Mudd College)

Fall 2009 Algebra/Number Theory/Combinatorics Seminars

Date:	Title:	Speaker:
Sep/08/2009	Organizational meeting	Everyone
Sep/15/2009	Simulation reductions for the Ising model	Mark Huber (Claremont McKenna College)
Sep/22/2009	The peculiar phase structure of random graph bisection	Allon Percus (Claremont Graduate University)
Sep/29/2009	Khovanov homology and the Jones polynomial	Sam Nelson (CMC)
Oct/06/2009	Generating an algebra from the probabilistic standpoint	Bogdan Petrenko (SUNY Brockport)
Oct/13/2009	Tests of uniformity for rank data, the symmetric group, and frames	Michael Orrison (Harvey Mudd College)
Oct/27/2009	Fourier analysis, linear programming, and densities of distance avoiding sets	Frank Vallentin (TU Delft, Netherlands)
Nov/03/2009	Fields of norms and p-adic dynamical systems	Ghassan Sarkis (Pomona College)
Nov/10/2009	The typical structure of graphs without given excluded subgraphs	Jozsef Balogh (University of Illinois at Urbana-Champaign)
Nov/17/2009	Neighborhood complexes and rational generating functions	Kevin Woods (Oberlin College)
Nov/24/2009	Ranks of polynomials	Zach Teitler (Texas A&M University)
Dec/01/2009	Real quadratic analogues of traces of singular moduli	William Duke (UCLA)
Dec/08/2009	The Euclidean algorithm and primitive roots	Kate Petersen (Florida State University)

Spring 2009 Algebra/Number Theory/Combinatorics Seminars

Date:	Title:	Speaker:
Jan/27/2009	Energy Minimizing Spherical Codes and Designs	Achill Schurmann (University of Magdeburg)
Feb/03/2009	Toric Symmetry in Gromov-Witten Theory	Dagan Karp (Harvey Mudd College)
Feb/10/2009	Bulgarian solitaire and related operations on partitions	Brian Hopkins (Saint Peter's College)
Feb/17/2009	Non-Archimedean dynamics of power series	Ghassan Sarkis (Pomona College)
Feb/24/2009	Card shuffling and connections to representation theory	Lerna Pehlivan (University of Southern California)
Mar/03/2009	On heights of algebraic numbers	Lenny Fukshansky (Claremont McKenna College)
Mar/10/2009	Strong approximation for quadrics	Wai Kiu Chan (Wesleyan University)
Mar/24/2009	The Distribution of the Zeros of Orthogonal Polynomials on the Unit Circle	Mihai Stoiciu (Williams College)
Mar/31/2009	Iterated Partitions of Triangles	Ronald Graham (University of California San Diego)
Apr/07/2009	Simultaneous Diophantine equations with side constraints: an elementary method	Stephan Garcia (Pomona College)
Apr/14/2009	Achievable pebbling numbers	Cindy Wyels (Cal State University Channel Islands)
Apr/21/2009	Combinatorial Representation Theory - Old and New (MSRI video)	Georgia Benkart (University of Wisconsin-Madison)
Apr/28/2009	Two Million Dollars of Math: An Introduction to the Birch and Swinnerton-Dyer Conjecture	Christopher Towse (Scripps College)
May/05/2009	Fun with Cyclotomic Polynomials	Gary Brookfield (California State University Los Angeles)

Fall 2008 Algebra/Number Theory/Combinatorics Seminars

Date:	Title:	Speaker:
Sep/09/2008	Organizational meeting	All interested Claremont faculty invited!
Sep/16/2008	Interlocking Linkages	Julie Glass (California State University East Bay)
Sep/23/2008	On Siegel's lemma	Lenny Fukshansky (Claremont McKenna College)
Sep/30/2008	A very brief introduction to fields of norms	Ghassan Sarkis (Pomona College)
Oct/07/2008	Inconsistencies with Nonparametric Procedures and Statistics: Combinatoric and Asymptotic Results	Anna E. Bargagliotti (University of Memphis)
Oct/14/2008	More algebraic structures from knot theory	Sam Nelson (Claremont McKenna College)
Oct/28/2008	The Applied Mathematics of the Nottingham Group	Jonathan Lubin (Brown University - emeritus)
Nov/04/2008	An introduction to Gromov-Witten theory	Dagan Karp (Harvey Mudd College)
Nov/11/2008	Groupoidification	Alex Hoffnung (University of California Riverside)
Nov/18/2008	Bounds on self-dual codes and lattices	Eric Rains (Caltech)
Nov/25/2008	Beyond Moonshine	Geoffrey Buhl (California State University Channel Island)
Dec/02/2008	Using Group Theory and Graph Theory to Build Fast CommunicationsNetworks: A Brief Introduction to Expanders and Ramanujan Graph	Mike Krebs (California State University Los Angeles)
Dec/09/2008	Minimal Triangulations of Cubes and Simplotopes	Francis Su (Harvey Mudd College)

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