共 50 条
- [31] OPEN NOETHERITY OF TOPOLOGICAL SEMIGROUP RINGS VESTNIK MOSKOVSKOGO UNIVERSITETA SERIYA 1 MATEMATIKA MEKHANIKA, 1991, (05): : 62 - 67
- [33] The topological center of the semigroup of free ultrafilters Mathematical Notes, 1998, 63 : 384 - 387
- [40] CONTINUITY OF CONVOLUTION OPERATOR IN A TOPOLOGICAL SEMIGROUP COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE A, 1971, 272 (09): : 588 - &