共 50 条
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- [2] COMMUTATIVE SEMIGROUPS WITH DCC ON CONGRUENCES NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1973, 20 (01): : A92 - A92
- [6] GROUP HOMOMORPHISMS OF COMMUTATIVE SEMIGROUPS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1971, 18 (01): : 85 - &
- [7] THEOREM ON TORSION COMMUTATIVE SEMIGROUPS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1974, 21 (01): : A92 - A92
- [8] ENDOMORPHISM SEMIGROUPS AND LATTICES OF SUBALGEBRAS AND CONGRUENCES . PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1969, 16 (04): : 657 - &