Igor Krichever was born in Samara (Kuyibyshev) and spent his childhood in Taganrog. His mathematical talent has become apparent quite early. Having graduated from primary school, he moved to Moscow ...

All photos are by C. J. Mozzochi, Princeton N.J., and are also available on his web page. In the galleries, click on a thumbnail photo to show it in the main window. Click on a photo to open its full ...

String theory, conceptualized more than 50 years ago as a framework to explain the formation of matter, remains elusive as a “provable” phenomenon. But a team of physicists has now taken a significant ...

This past summer Nordita ran a program on quantum gravity, featuring lectures and panel discussions on various approaches to the subject. Lecture notes from the six mini-courses are now available here ...

It’s been taking me forever to sort out and write down the details of implications of the proposal described here. While waiting for that to be done, I thought it might be a good idea to write up one ...

This is a continuation of last year's learning/research seminar on representation theory, often with an eye towards categorification. Talks will likely be disconnected talks from across representation ...

The Columbia Algebraic Geometry Seminar takes place on Fridays at 3:30 pm in 417 Mathematics Hall on the Columbia campus. All are welcome. Tea is served at 3 pm in 508 Mathematics Hall. The seminar is ...

The Columbia Algebraic Geometry Seminar this semester is online. Because of this, it also has a temporary alternate schedule. It takes place every other Friday at 1:00 pm on Zoom (password is the ...

Welcome to the Learning Seminar on Automorphic Forms. This seminar aims to provide an introduction to automorphic forms. We'll follow the books by Bump (Automorphic Forms and Representations) and ...

I play the game of Go. My OGS username is wqli. (Previously I had an account with the username wenqili, but I lost access to that account.) ...