Systolic geometry and simplicial complexity for groups

Abstract

Twenty years ago Gromov asked about how large is the set of isomorphism classes of groups whose systolic area is bounded from above. This article introduces a new combinatorial invariant for finitely presentable groups called {\it simplicial complexity} that allows to obtain a quite satisfactory answer to his question. Using this new complexity, we also derive new results on systolic area for groups that specify its topological behaviour.

35 pages, 9 figures

References in corpus (1)

• Diastolic and isoperimetric inequalities on surfaces

Cited by in corpus (3)

• A systolic inequality with remainder in the real projective plane
• Systolic geometry and regularization technique
• Simplicial complexity of surface groups and systolic area