most citedA Proof that Thompson's Groups have Infinitely Many Relative Ends

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math.GT2009

A proof of Sageev's Theorem on hyperplanes in CAT(0) cubical complexes

Daniel Farley

We prove that a hyperplane in a CAT(0) cubical complex X has no self-intersections and separates X into two convex complementary components. These facts were originally proved by S…

math.GR2007★ 1 cited

A Proof that Thompson's Groups have Infinitely Many Relative Ends

Daniel Farley

We show that each of Thompson's groups F, T, and V have infinitely many ends relative to certain subgroups. We go on to show that T and V both have Serre's property FA, i.e., any a…