Ben Spitz
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diracdeltafunk.bsky.social
Ben Spitz
@diracdeltafunk.bsky.social
Sheaf Herder. I believe in you 🔥

benspitz.com
Very very happy with this project we ran at the M2 workshop this summer in Madison -- it is now possible to do compute Ext, Tor, etc. of C_p-Mackey functors by computer!

The image below shows how you can use the package to compute a free resolution of a C_p-Mackey functor.
September 17, 2025 at 3:44 AM
... can this be simplified at all? n and m are fixed positive integers, p is a fixed real number between 0 and 1.
September 9, 2025 at 10:45 PM
My claim to fame is being the first person (I think) to find 4×4 examples of this
August 19, 2025 at 3:42 AM
Uh ok now with a non-transparent background
August 18, 2025 at 5:21 PM
You've inspired me to make this banner for my course this semester
August 18, 2025 at 5:20 PM
You cast a wide net!

Today I'm cleaning the house and knocking out a cabinet so I can install a dishwasher 🙏
August 17, 2025 at 9:10 PM
It's not given much explanation in the paper... here's my understanding.

The paper shows that the total number of rings grows faster than the number of local rings with m²=0, but grows at the ~same rate as the number of local rings with m³=0. So, maybe the local rings with m³=0 are ~everything!
August 17, 2025 at 3:20 PM
BABY FROG
June 13, 2025 at 11:01 PM
Sneak research preview -- fun pictures coming soon

In this paper, we also get to take a limit as p (a prime) approaches 1 :^)
June 13, 2025 at 2:41 PM