Infosheet (January 31st, 2017)

Queen's University - Department of Mathematics and Statistics


Tuesday, January 31

Grad Seminar (Video)

Time: 12:30 p.m.

Place: Jeffery 115

Video: Jean-Pierre Serre https://en.wikipedia.org/wiki/Jean-Pierre_Serre

Title: How to Write Mathematics Badly

Info Attached

Tuesday, January 31

Seminar in Free Probability and Random Matrices

Time: 2:30 p.m.

Place: Jeffery 222

Speaker: Josué Daniel Vázquez Becerra, Queen’s University

Title: The effect of asymptotic liberation on the covariance of traces of random matrices

Abstract Attached

Tuesday, January 31

Dynamics Seminar

Time: 3:30 p.m.

Place: Jeffery 422

Speaker: Francesco Cellarosi

Title: Furstenberg’s proof of Szemeredi’s Theorem

Abstract Attached

Thursday, February 2

Math Club

Time: 5:30 p.m.

Place: Jeffery 118

Speaker: Claude Tardiff, RMC

Title: End to end auditable voting systems

Abstract Attached

Friday, February 3

Number Theory Seminar

Time: 10:30 a.m.

Place: Jeffery 422

Speaker: Richard Leyland

Title: Class Field Theory and Complex Multiplication

Abstract Attached

Friday, February 3

Department Colloquium

Time: 2:30 p.m.

Place: Jeffery 234

Speaker: Arunabha Biswas, Queen’s University

Title: A short story about higher Mahler measure

Abstract Attached

Items for the Info Sheet should reach Anne ( burnsa@queensu.ca) by noon on Monday. The Info Sheet is published every Tuesday.


Tuesday, January 31, 12:30 p.m. Jeffery 115 Grad Seminar

Speaker: Jean-Pierre Serre < https://en.wikipedia.org/wiki/Jean-Pierre_Serre >

Title: How to Write Mathematics Badly

Info: The talk is apparently from the Harvard “Basic Notions” seminar in 2003, and is both educational and hilarious. - A. Frankild


Tuesday, January 31, 2:30 p.m. Jeffery 222

Seminar in Free Probability and Random Matrices

Speaker: Josué Daniel Vázquez Becerra

Title: The effect of asymptotic liberation on the covariance of traces of random matrices

Abstract: In this talk, we present some estimations for the asymptotic behaviour of the covariance of (unnormalized) traces of random matrices, when conjugated by asymptotically liberating random unitary matrices.

Seminar website: http://www.mast.queensu.ca/~mingo/seminar/


Tuesday, January 31, 3:30 p.m. Jeffery 422 Dynamics Seminar

Speaker: Francesco Cellarosi

Title: Furstenberg’s proof of Szemeredi’s theorem

Abstract: In this expository talk, I will present the ergodic-theoretic proof of a famous theorem of E. Szemerédi. The theorem (proved in 1975, and previously known as a conjecture of P. Erdős and P. Turán) states that every set of integers with positive upper density contains arbitrary long arithmetic progressions. After the original combinatorial proof, H. Furstenberg found a different proof in 1977, using ergodic theory. He noticed that Szemerédi's theorem is equivalent to a statement about multiple recurrence of measure preserving transformations. I will explain the main ideas in the proof, and in particular why multiple recurrence occurs for special classes of examples: Bernoulli systems, and weakly mixing systems. The talk is based on a 1982 paper by H. Furstenberg, Y, Katznelson and D. Ornstein.


Thursday, February 2, 5:30 p.m. Jeffery 118 - Math Club

Speaker: Claude Tardiff

Title: End to end auditable voting systems

Abstract: Parallel to the topic of electoral reform, the newly evolving field of end to end auditable systems deals with ways to verify that the results of an election are correct using cryptography, ballots with serial numbers and voter receipts posted online. We will discuss the ThreeBallot system devised by Ron Rivest, and the problems with posting ballots online.


Friday, February 3, 10:30 a.m. Jeffery 422 - Number Theory Seminar

Speaker: Richard Leyland

Title: Class Field Theory and Complex Multiplication

Abstract: An elliptic curve is said to have complex multiplication if its endomorphism rings is strictly larger than the ring of integers. Class field theory classifies abelian extensions of a field K unramified outside a given finite list of primes. In this talk, we shall see that the theory of complex multiplication gives these extensions explicity for the case where K is an imaginary quadratic field.


Friday, February 3, 2:30 p.m. Jeffery 234 - Department Colloquium

Speaker: Arunabha Biswas

Title: A short story about higher Mahler measure

Abstract: In number theory, Mahler measure is kind of a height function of a polynomial and it is associated with Lehmer's conjecture which is an open problem for more than eight decades. Higher Mahler measure is a generalization of Mahler measure. In this talk I shall tell some old stories about Mahler measure and some new stories about higher Mahler measure.

Contact Info

Department of Math & Stats
Jeffery Hall, 48 University Ave.
Kingston, ON Canada, K7L 3N6
Phone: (613) 533-2390
Fax: (613) 533-2964
mathstat@mast.queensu.ca
Office Hours: 8:30am-12:00pm & 1:00pm-4:30pm

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