Jantanan, Wichayaporn; Riantaisong, Jakkaphan
(มหาวิทยาลัยราชภัฏบุรีรัมย์, 2019-01-03)
The concept of
( , ) m n -simple ordered semigroups has been introduced by T.
Changphas (Changphas, 2015, pp. 1-5). Let
m n,
be nonnegative integers. An ordered
semigroup
S
is said to be
( , ) m n -simple if it ...