Organizers: David Allen, Aradhana Kumari, Margaret H. Dean, and Marcos Zyman.
Unless otherwise noted, the colloquium meets at 2 PM on certain Wednesdays. Cookies are offered during every talk. All talks should be accessible to a general mathematical audience. Everyone is welcome. This page is constantly updated as information on speakers becomes available.
10/1: Professor Dennis Sullivan (CUNY Graduate Center and Stony Brook University)
Note: Professor Sullivan's talk has been postponed. Stay tuned for the new date, time, and place.
Three kinds of objects C, H, and S in even dimensional geometryAbstract
10/17: Jonas Reitz (CUNY City Tech)
Title: Gödel's Incompleteness: The most
important abused theorem in modern mathematics
Fiterman Hall, Room 505 at 2 PM
It is sometimes claimed to prove the existence of God or of free will, the necessary incompleteness of the Bible or of the U.S. Constitution, or the impossibility of genuine knowledge in mathematics --just to mention a few of the many alleged applications
--Panu Raatikainen, Notices of the AMS, March 2007
The goal of this talk is to give an overview of Gödel's First Incompleteness Theorem, exploring the precise formulation of this famous result. The talk will include an introduction to Mathematical Logic and touch on some of the historical events in the field surrounding Gödel's work.
10/30: Elena Kosygina (CUNY Baruch College and Graduate Center)
Note special day, time, and venue: Tuesday 1:45-3:30 in N585
Excited random walks, or bribing with cookiesAbstract
Can randomness see the shape of space?
Fiterman Hall, Room 408 at 2 PM
Geometric Group Theory is the recently discovered field of mathematics (ca. 1990) based on the principle that if we consider a group to be a collection of symmetries of some object, then we can use the geometry of that object to better understand the group. In particular, the geometric point of view allows us to talk about the notion of random motion inside a group. These so-called random walks turn out to exhibit very different behavior in the amenable and non-amenable cases.