Results 11 to 20 of about 188 (178)
Commutativity in Double Interchange Semigroups [PDF]
Applied Categorical Structures, 2018 25 pages, 5 figures, 27 references, comments ...
Fatemeh Bagherzadeh, Murray R. Bremner
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Varieties of commutative semigroups [PDF]
Transactions of the American Mathematical Society, 1994 In this paper, we describe all equational theories of commutative semigroups in terms of certain well-quasi-orderings on the set of finite sequences of nonnegative integers. This description yields many old and new results on varieties of commutative semigroups.
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On absorption in semigroups and $n$-ary semigroups [PDF]
Logical Methods in Computer Science, 2015 The notion of absorption was developed a few years ago by Barto and Kozik and immediately found many applications, particularly in topics related to the constraint satisfaction problem.
Bojan Bašić
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Asymptotic ω-Primality of Finitely Generated Cancelative Commutative Monoids
Mathematics, 2023 The computation of ω-primality has been object of study, mainly, for numerical semigroups due to its multiple applications to the Factorization Theory. However, its asymptotic version is less well known.
Juan Ignacio García-García +2 more
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Morita invariants for partially ordered semigroups with local units; pp. 38–47 [PDF]
Proceedings of the Estonian Academy of Sciences, 2012 We study Morita invariants for strongly Morita equivalent partially ordered semigroups with several types of local units. These include the greatest commutative images, satisfying a given inequality and the fact that strong Morita equivalence preserves ...
Lauri Tart
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On Semisimple Commutative Semigroups [PDF]
Transactions of the American Mathematical Society, 1975 This paper presents an application of radical theory to the structure of commutative semigroups via their semilattice decomposition. Maximal group congruences and semisimplicity are characterized for certain classes of commutative semigroups and
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Abelization of join spaces of affine transformations of ordered field with proximity
Applied General Topology, 2005 Using groups of affine transformations of linearly ordered fields a certain construction of non-commutative join hypergroups is presented based on the criterion of reproducibility of semi-hypergroups which are determined by ordered semigroups. The aim of
Sárka Hosková
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On commutativity of a semigroup which is a semilattice of commutative semigroups
Journal of Algebra, 1969 Let P,(G) and P,(G) be abstract properties pertaining to commutative semigroups G in the sense of Cohn [3]. P,(G) is said to be weaker than or equal to P,(G) and denoted by P,(G) 3 P,(G) if and only if, for any commutative semigroup S, P,(G) is satisfied by S (i.e., P,(S) is true) whenever P,(G) is satisfied by S.
Yoshida, Reikichi, Yamada, Miyuki
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Conditions for the commutativity of semigroups [PDF]
Proceedings of the American Mathematical Society, 1976 Let S S be a semigroup. Then by a theorem of Tully [7]:
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Constructions of positive commutative semigroups on the plane, II
International Journal of Mathematics and Mathematical Sciences, 1985 A positive semiroup is a topological semigroup containing a subsemigroup N isomorphic to the multiplicative semigroup of nonnegative real numbers, embedded as a closed subset of E2 in such a way that 1 is an identity and 0 is a zero.
Reuben W. Farley
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