Title of article :
Direct products of cyclic semigroups and left zero semigroups in βN
Author/Authors :
Zelenyuk ، Yuliya School of Mathematics - University of the Witwatersrand
Abstract :
We show that for every n ∈ N, the direct product of the cyclic semigroup of order n and period 1 and the left zero semigroup 2c has copies in βN.
Keywords :
Stone , Čech compactification , idempotent , right cancelable ultrafilter , cyclic semigroup , left zero semigroup
Journal title :
Categories and General Algebraic Structures with Applications
Journal title :
Categories and General Algebraic Structures with Applications
