N. Ruškuc

collaborators

3 papers

math.GR2026

Howson property and finitely generated intersection problem for monogenic inverse semigroups

Jung Won Cho, Craig Miller, Nik Ruškuc

An algebraic structure is said to have the Howson property if the intersection of any two finitely generated subalgebras is finitely generated. We explore the Howson property in th…

math.GR2025

Twisted products of monoids

James East, Robert D. Gray, P. A. Azeef Muhammed +1

A twisting of a monoid $S$ is a map $Φ : S \times S \to N$ satisfying the identity $Φ (a, b) + Φ (ab, c) = Φ (a, b c) + Φ (b, c)$ . Together with an additive commutative monoid $M$ , and…

math.RA2025

Semigroup Congruences and Subsemigroups of the Direct Square

Callum Barber, Nik Ruškuc

We investigate semigroups $S$ which have the property that every subsemigroup of $S \times S$ which contains the diagonal ${(s, s) : s \in S}$ is necessarily a congruence on $S…