$Z^n$-free groups are CAT(0)

Abstract

We show that every group with free ${\mathbb{Z}}^n$-length function is CAT(0).

To be published in the Journal of the London Mathematical Society. This version is very close to the accepted version. The exposition greatly improved due to the referee's comments

References in corpus (2)

• Actions of finitely generated groups on R-trees
• Groups with free regular length functions in Z^n

Cited by in corpus (1)

• Boundaries of ${\mathbb{Z}}^n$-free groups