New York Number Theory Seminar

In January 1982, Number Theorists in New York City and its environs began meeting regularly at the Graduate Center of the City University. The location was convenient to all parts of the city as well as to major transportation hubs. The original organizers were Harvey Cohn, David Chudnovsky, Gregory Chudnovsky and Melvyn B. Nathanson. Harvey Cohn has retired, but Nathanson is now based in the City University and able to act as host of the seminar.

Archive

Proceedings of the Seminar have been published by Springer-Verlag, originally in the Lecture Notes in Mathematics series

More recent reports appear as individual volumes, with the simple title Number Theory, and the names of the editors of the volume on the cover.

This page was first developed in the Fall of 2000. Schedules by semester are available.

Notes

In his presentation on October 28, 2010, Mike Shub asked for examples of polynomials given as a composition that had a full set of distinct real roots. Participants in the seminar produces an example of a composition of three quadratics with eight distinct real roots. A search for other examples was initiated, leading to a response giving an example of a composition of four quadratics by Carlos di Fiore, a student in Buenos Aires. Here is his response.

Current Semester

The Graduate Center is currently located at 365 Fifth Avenue, between 34th and 35th Streets. The Ph.D. program in mathematics is located on the fourth floor. The seminar has met on Thursday afternoons for several years. In the Spring 2011 semester the seminar will met Thursdays from 3:00 to 4:00 in room 4419. More details will be posted in the department common area on the fourth floor. Current information on all seminars can be found in the Seminar Page of the Graduate Center Mathematics Department.

Date Speaker and
Affiliation
Title of talk
February 3 Noson S. Yanofsky
Brooklyn College
Undecidable, unsolvable and independence (abstract)
February 10 Zeljka Ljujic
CUNY Graduate Center
Sums of dilates of finite sets of integers (abstract)
February 17 Jean-Marc Deshouillers
Bordeaux University
On the least non-zero digit of n!
(joint work with Imre Ruzsa) (abstract)
February 24 Jaewoo Lee
BMCC
On the supremum of the representation function of an additive basis (abstract)
March 3 Mel Nathanson
Lehman College and the Graduate Center
Applications of Hamidoune's graph theoretic methods to additive number theory
March 10 Mel Nathanson
Lehman College and the Graduate Center
Applications of Hamidoune's graph theoretic methods to additive number theory, part 2
March 17 Mel Nathanson
Lehman College and the Graduate Center
Applications of Hamidoune's graph theoretic methods to additive number theory, part 3
March 24 Mel Nathanson
Lehman College and the Graduate Center
Applications of Hamidoune's graph theoretic methods to additive number theory, part 4
March 31 Mel Nathanson
Lehman College and the Graduate Center
Applications of Hamidoune's graph theoretic methods to additive number theory, part 5
April 7No meeting
April 14 Mel Nathanson
Lehman College and the Graduate Center
Sidon sets and k-atoms
April 21No meeting, Spring Break
April 28No meeting
May 5 Mel Nathanson
Lehman College and the Graduate Center
A lower bound for the number of sums and products in a finite field
Some weeks pass.
May 24-28 Workshop in Combinatorial and Additive Number Theory (CANT 2011)

Go to home page of R. T. Bumby
Go to Seminar Page of the Graduate Center Mathematics Department.
This file was last modified on Monday May 09, 2022.


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