Tuesday, October 22, 2024

Autumn 2024

The art from here

24 and 31 Oct, Thursday

Philip Feinsilver

Convergence theorems for matrices with some negative entries

See the outline.

Video:  Part 1 and Part 2



Wednesday, October 16, 2024

Autumn 2024

17 Oct 2024

Jerzy Kocik

${\rm SL}(2,\mathbb Z)$  --  The modular and the Dedekind tesselations 

I suggest seeing this site as a "prerequisite:" Lieven LeBruyn: Neverendingbooks