A. I. Papistas

activity

20172022

collaborators

3 papers

math.GR2022

On automorphisms of certain free nilpotent-by-abelian Lie algebras

C. E. Kofinas, A. I. Papistas

For a positive integer $n$ , with $n \geq 4$ , let $R_{n}$ be a free (nilpotent of class 2)-by-abelian and abelian-by-(nilpotent of class 2) Lie algebra of rank $n$ . We show that the…

math.GR2020

Quotient groups of IA-automorphisms of free metabelian groups

C. E. Kofinas, A. I. Papistas

For a positive integer $n$ , with $n \geq 2$ , let $M_{n}$ be a free metabelian group of rank $n$ . For $c \in N$ , let $γ_{c} (M_{n})$ be the $c$ -th term of the lower central series…

math.GR2017

Quotient groups of IA-automorphisms of a free group of rank 3

V. Metaftsis, A. I. Papistas, H. Sevaslidou

We prove that, for any positive integer $c$ , the quotient group $γ_{c} (M_{3}) / γ_{c + 1} (M_{3})$ of the lower central series of the McCool group $M_{3}$ is isomorphic to two copies of…