Questions tagged [sandpile]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
51 votes
3 answers
3k views

What is the sandpile torsor?

Let G be a finite undirected connected graph. A divisor on G is an element of the free abelian group Div(G) on the vertices of G (or an integer-valued function on the vertices.) Summing over all ...
JSE's user avatar
  • 19.1k