NOVEMBER 3, 2026

SPEAKER: Debanjana Kundu, Assistant Professor, University of Regina

(Learn more about the speaker here)

TITLE: Recent Developments in Non-Equal Characteristic Iwasawa Theory

ABSTRACT: Iwasawa theory traditionally explores how arithmetic objects (like ideal class groups and Selmer groups) grow in infinite towers of number fields. Historically, this research has focused on the p-primary parts of these objects within extensions built from the same prime p, such as those generated by p-power roots of unity.

But what happens when these primes are different? Can we decipher the p-primary structure over extensions constructed using an entirely different prime q? In this talk, we will review classical foundations and highlight recent work in this mixed-prime setting. Additionally, we will explore new developments surrounding a lesser-known folklore conjecture.

TIME: All in the CDT Time Zone

Meet and Greet:

1:45pm-2:00pm

Talk:

2:00pm-2:50pm

Questions:

2:50pm-3:00pm

LOCATION:

The event will take place via Zoom.

ZOOM LINK: https://usask-ca.zoom.us/j/98831013245?pwd=MxPVdbOWAH1jcYlsaHubCA2u1IfgC2.1

Meeting ID: 988 3101 3245

Passcode: 61054999