Department of Mathematics Calendar

Back to Listing

The Department of Mathematics Calendar has moved to Webtools. Anyone may submit an event by clicking the "+" button (upper right). Note: the Sponsor field is required. Just type "n/a"

All events will be reviewed before acceptance. Please email Shelby Koehne if you have any questions about submitting an event.

Note: you may search past and future events by clicking on the magnifying glass icon on the main Calendar page.

For an archive of past events: https://math.illinois.edu/research/seminars-department-calendar

Colloquium: Diffusion and diffraction in algebraic topology

Event Type
Seminar/Symposium
Sponsor
n/a
Location
245 Altgeld
Date
Mar 3, 2022   4:00 pm  
Speaker
Paul G. Goerss, Northwestern University
Contact
Jozsef Balogh
E-Mail
jobal@illinois.edu
Views
145

Algebraic topologists compute the very basic geometric invariants, such as the genus of a surface or the Euler characteristic of a finite simplicial complex. The most basic invariant of all is the stable homotopy groups of spheres, but these have a well-earned reputation of being a chaotic mess, seemingly without any discernible order. It turns out, however, that with the right diffraction principle and a good deal of hard computation, we can separate out some very intriguing large-scale patterns. What these patterns are and how they should fit together is the subject of a number of conjectures, some of which have seen remarkable progress in the past few years. In this talk I’ll display the patterns, lay out the conjectures, and talk about the recent progress, touching on the work of a whole host of people, many of whom live and work here in the Midwest.

link for robots only