Itamar Stein

collaborators

3 papers

math.RT2026

The representation theory of the wreath product of a finite group with the monoid of all partial functions on a finite set as an EI-category algebra

Itamar Stein

Let $G$ be a finite group. We provide a description of the ordinary quiver of the complex monoid algebra of the wreath product $G ≀ PT_{n}$ , where $PT_{n}$ denotes…

math.RT2025

Representation theory of monoids consisting of order-preserving functions and order-reversing functions on an n-set

Itamar Stein

Let $OD_{n}$ be the monoid of all order-preserving functions and order-reversing functions on the set ${1, \dots, n}$ . We describe a quiver presentation for the mon…

math.RT2025

The algebra of the monoid of order-preserving functions on an $n$ -set and other reduced $E$ -Fountain semigroups

Itamar Stein

With every reduced $E$ -Fountain semigroup $S$ which satisfies the generalized right ample condition we associate a category with zero morphisms $C (S)$ . Under some assumpt…

The representation theory of the wreath product of a finite group with the monoid of all partial functions on a finite set as an EI-category algebra

Representation theory of monoids consisting of order-preserving functions and order-reversing functions on an n-set

The algebra of the monoid of order-preserving functions on an n-set and other reduced E-Fountain semigroups

The algebra of the monoid of order-preserving functions on an $n$ -set and other reduced $E$ -Fountain semigroups