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Questions about the branch of algebra that deals with groups.

6 votes

Ising model on groups

Hi Marcin, recently writing a paper about phase transition on the Ising model with positive non-uniform magnetic field in infinite graphs I discovered that joining some results in the literature we …
Leandro's user avatar
  • 2,044
3 votes
2 answers
2k views

If $G$ is amenable, when $G\times G$ is amenable ?

I am not specialist on Topological Group Theory, I apologize if this is a trivial question. Question. If $G_1=G_2$ are amenable topological groups what additional hypothesis we have to consider on …