A band generated by two semilattices is regular.
The Hopf property and K-free products of semigroups.
A graphical representation for the free product of E-unitary inverse semigroups.
Joins and meets of congruences on a regular semigroup.
Monoid varieties defined by xn+1 = ... are local.
On free products of bands.
Embedding semigroups in ...-trivial semigroups.
E-free objects and E-locality for completely regular semigroups.
The least inverse and orthodox congruences on a completely regular semigroup.
Page 1