1 citations · 1 across the 4 of their papers we have counts for
5 papers
Paradoxical decomposition of Group Actions and Configuration
A. Rejali, A. Yousofzadeh, M. Meisami +1
In this paper we study the notion of configuration for group actions. It is proved that some properties concerning configuration of groups can be extended for the case of group act…
Countable-configurations and paradoxical decompositions
M. Meisami, A. Rejali, A. Yousofzadeh
In this paper we define countable-configuration of groups and prove that two Hopfian groups with the same set of countable-configurations are isomorphic and vice versa. We also stu…
A survey of configurations
Akram Yousofzadeh
To any finite ordered subset and any finite partition of a group a set of tuples of positive integers, named as configurations, is associated that describes the group's behavior. T…
A constructive way to compute the Tarski number of a group
Akram Yousofzadeh
The Tarski number of a group is the minimal number of the pieces of paradoxical decompositions of that group. Using configurations along with a matrix combinatorial property we…
Configuration of nilpotent groups and isomorphism
A. Abdollahi, A. Rejali, A. Yousofzadeh
The concept of configuration was first introduced by Rosenblatt and Willis to give a condition for amenability of groups. We show that if and have the same configuratio…