3 papers
math.GR2025
Pure symmetric automorphisms, extensions of RAAGs, and Koszulness
Conchita MartÃnez-Pérez, Luis Mendonça
We characterize in terms of a combinatorial condition on the graph when the group of pure symmetric automorphisms of the RAAG and its outer versio…
math.GR2024
Generalized torsion elements in infinite groups
Raimundo Bastos, Luis Mendonça
A group element is called generalized torsion if a finite product of its conjugates is equal to the identity. We show that in a finitely generated abelian-by-finite group, an eleme…
math.GR2024
Compact -adic analytic groups in which centralizers are abelian
Luis Mendonça, Thomas S. Weigel, Theo Zapata
Using methods of associative algebras, Lie theory, group cohomology, and modular representation theory, we construct profinite -adic analytic groups such that the centralizer of…