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.

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

**1052**: 11 articles from 1982.**1135**: 11 articles from 1983 and 1984.**1240**: 16 articles from 1984 and 1985.**1383**: 14 articles from 1985 through 1988.

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.

- 13 articles from 1989 through 1990 (ISBN 0-387-97670-1).
- 22 articles from 1991 through 1995 (ISBN 0-387-94826-0).
- 16 articles from 1995 through 2003 (ISBN 0-387-40655-7).

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

- Fall 2000
- No meetings in Spring 2001
- Fall 2001
- Spring 2002
- Fall 2002
- Spring 2003
- Fall 2003
- Spring 2004
- Fall 2004
- Spring 2005
- Fall 2005
- Spring 2006
- Fall 2006
- Spring 2007
- Fall 2007
- Spring 2008
- Fall 2008
- Spring 2009
- Fall 2009
- Spring 2010
- Fall 2010

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.

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 7 | No meeting | |

April 14 | Mel Nathanson Lehman College and the Graduate Center |
Sidon sets and k-atoms |

April 21 | No meeting, Spring Break | |

April 28 | No 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.