2 papers
math.GR2026
Geometric Inverse Semigroup Theory: a note on the Milnor-Schwarz Lemma for inverse monoids
Giorgio Mangioni, Francesco Tesolin
We generalise the Milnor-Schwarz lemma to inverse monoids acting on presheaves of geodesic metric spaces. We provide two proofs of this fact: one only uses elementary techniques, i…
math.RA2025
A Generalisation of the Munn Semigroup
Francesco Tesolin
To each meet-semilattice is associated an inverse semigroup called the Munn semigroup of . We generalise this construction by replacing the meet-semilattice by a…