10 citations · 13 across the 5 of their papers we have counts for
5 papers
Involutions of (twisted) diagram monoids
James East, P. A. Azeef Muhammed
We classify the involutions of all of the most well-studied diagram monoids -- namely the partition, planar partition, partial Brauer, Motzkin, Brauer and Temperley--Lieb monoids -…
Categorical representation of DRC-semigroups
James East, Matthias Fresacher, P. A. Azeef Muhammed +1
DRC-semigroups model associative systems with domain and range operations, and contain many important classes, such as inverse, restriction, Ehresmann, regular -, and -regula…
Projection algebras and free projection- and idempotent-generated regular -semigroups
James East, Robert D. Gray, P. A. Azeef Muhammed +1
The purpose of this paper is to introduce a new family of semigroups - the free projection-generated regular -semigroups - and initiate their systematic study. Such a semigroup…
Cross-connections of the singular transformation semigroup
P. A. Azeef Muhammed, A. R. Rajan
Cross-connection is a construction of regular semigroups using certain categories called normal categories which are abstractions of the partially ordered sets of principal left (r…
Normal category of partitions of a set
A. R. Rajan, Azeef Muhammed P A
Let be the semigroup of all non-invertible transformations on an arbitrary set . It is known that is a regular semigroup. The principal right(left) ideals of a regul…