The Structure of the Munn Semigroup of 0-unions of Two ω-chains and Congruences on It
Yulin Cao · Journal of Sichuan Normal University · 2009
In this paper,the Munn semigroup TE for 0-union E of two co-chains is characterized;the form of its elements,the multiplication formula and the Green’s relations on TE are given. The least normal congruence generated by congruence pair is discussed from which the congruence lattice is analyzed.