常見(jiàn)例句A class of IC-superabundant semigroups was studied. 摘要研究一類IC-超富足半群。BQ property of ordered transformation semigroups is mainly studied. 研究了幾類變換序半群的BQ性。The latter two published a monograph on semigroup theory in 1961. 后面二人在 1961 年出版了半群理論的專論。A construction theorem for such semigroup is obtained. 給出該類半群的一個(gè)構(gòu)造定理.A new construction theorem for orthodox semigroups with inverse transve. 本文給出了具有逆斷面的純正半群的一個(gè)新的構(gòu)造定理。It follows that every nonempty periodic semigroup has at least one idempotent. 得出了所有非空周期半群都有至少一個(gè)冪等元。 返回 semigroups