Department of Mathematics and Statistics

Colloquium

Fall, 2013

Tuesdays at 4:00 pm in Room 164 of Adel Mathematics Building

Refreshments at 3:45
This Week's Talk


Colloquium Schedule

Date
Speaker
Affiliation
Title  (click title to see abstract)
September 3 Iva Antoncic Univ. of Primorska On the Half-Arc-Transitivity of Quartic Weak Metacirculants
September 10 Ellie Kennedy NAU A Flipped Classroom Study in Calculus II
September 17 Charles Biles Humboldt State Univ. A History of Congressional Apportionment: Bringing Down the House
September 24 Michael Falk NAU Discrete models of hyperplane arrangements
October 1 Steve Wilson NAU The Ring of Fire solved by Rocks and Fishes
October 8 Shannon Guerrero NAU The Professional Development of Irish Teachers in Project Maths: An Outsiderís Perspective
October 17 Dana Ernst NAU An Iterated Prisoner's Dilemma
October 22 Jin Wang NAU Effect of Kurtosis on Efficiency of Multivariate Medians
October 29 Janet McShane NAU An Introduction to Hermitian Codes (sabbatical presentation)
November 5 Terry Crites NAU Disequilibrium, Intellectual Need, and Problem Solving
November 12 Michael Falk NAU A nonrealizable arrangement group
November 19 Mark Goresky IAS Princeton A Hollywood Celebrity, the “Bad Boy” of Music, and the History of Modern Wireless Communications
November 26 Sarah Gilyard NAU Calculus of Variations and the application to Curves of Fastest Descent (Brachistochrone Curves)
December 3 Steve Wilson NAU Three Vignettes of Elementary Mathematics

 

Weekly Seminars

Algebra, Combinatorics, Geometry, Topology (ACGT) Seminar

Tuesdays, 12:40 - 1:40 pm, AMB 164


This week: Speaker: Michael Falk (NAU), Title: A Catalan sighting: representations of sl2.

Abstract: In this “one-off” talk, I’ll sketch some of the (quite simple and beautiful) theory of representations of sl2(C), in order to exhibit yet another appearance of the Catalan numbers. Time permitting I’ll describe a curious Diophantine problem with interesting symmetry, that arose in our recent work (with A. Varchenko) about resonant weights in sl2 discriminantal arrangements. Dane Jacobson will continue his talk about Spinpossible next Tuesday.

Applied Math Seminar

Thursdays, 12:45 - 1:35 pm, AMB 164

This week: Speaker Todd Wolford, Title: A Cantor Set of Nonconvergence, continued.

Abstract: I will present a brief paper published by my PhD advisor and another former faculty member at New Mexico Tech. The paper addresses the question: If the function is such that there are numbers a<b<c<d such that the intervals [a,b] and [c,d] are both mapped continuously onto [a,d] while the interval (b,c) is mapped (either immediately or asymptotically) to fixed points then what can we say about the iterative sequences of points that start in [a,d] and do not converge to a fixed point? (Possible orbits?, Measure?, Density?)

Friday Afternoon Undergraduate Mathematics Seminar (FAMUS)

Fridays, 3:00 – 4:00 pm, AMB 164. (refreshments)



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Last updated 18 November 2013.
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