Calendar
- 01March 1, 2023
CMSA Conference on Geometry and Statistics
On Feb 27-March 1, 2023 the CMSA will host a Conference on Geometry and Statistics.
For more information, please see: https://cmsa.fas.harvard.edu/event/geometry-and-statistics/
- 01March 1, 2023
- 01March 1, 2023
Number Theory: Counting integral points on symmetric varieties, and applications to arithmetic statistics
Science Center 5071 Oxford Street, Cambridge, MA 02138 USAOver the past few decades, significant progress has been made in arithmetic statistics by the following two-step process: (1) parametrize arithmetic objects of interest in terms of the integral orbits of a representation of a group G acting on a vector space V; and (2) use geometry-of-numbers methods to count the orbits of G(Z) on V(Z). But it often happens that the arithmetic objects of interest correspond to orbits that lie on a proper subvariety of V. In such cases, geometry-of-numbers methods do not suffice to obtain precise asymptotics, and more sophisticated point-counting techniques are required. In this talk, we explain how the Eskin–McMullen method for counting integral points on symmetric varieties can be used to study the distribution of 2-class groups in certain thin families of cubic number fields.(Joint with Iman Setayesh, Arul Shankar, and Artane Siad) - 01March 1, 2023
Open Neighborhood Seminar: The joy of negatives
Science Center 5071 Oxford Street, Cambridge, MA 02138 USAOne of the first deep things we learned in elementary school is the act of taking negatives of numbers. I’ll explain the geometry that underlies this activity, which leads to algebraic K-theory and other gadgets. I also want to explain the joy of doing math with your friends.
For more information, please see: https://people.math.harvard.edu/~ana/ons/
- 02March 2, 2023
Thursday Seminar: Basic properties of biconnectivity
Science Center 5071 Oxford Street, Cambridge, MA 02138 USAThis seminar will take place in SC 507 at 3:30pm.