A PRESENTATION OF THE DUAL SYMMETRIC INVERSE MONOID
David Easdown, James East, D. G. FitzGerald · International Journal of Algebra and Computation · 2008
The dual symmetric inverse monoid [Formula: see text] is the inverse monoid of all isomorphisms between quotients of an n-set. We give a monoid presentation of [Formula: see text] and, along the way, establish criteria for a monoid to be inverse when it is generated by completely regular elements.