The identities of the free product of a pair of two-element monoids
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DOI: 10.1007/s00012-019-0587-3
Abstract: Up to isomorphism, there exist two non-isomorphic two-element monoids. We show that the identities of the free product of every pair of such monoids admit no finite basis. read more here.
Keywords: free product; pair; two element; identities free ... See more keywords
Partial Abelianization of Free Product of Algebras
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DOI: 10.1134/s1995080221100115
Abstract: In this article we consider partial abelianization of associative algebra with respect to a subalgebra. This notion is a generalization of usual abelianization of associative algebra and has an application in Quantum Mechanics and Quantum… read more here.
Keywords: abelianization free; abelianization; free product; product algebras ... See more keywords
Selection of In-Flight Duty-Free Product Suppliers Using a Combination Fuzzy AHP, Fuzzy ARAS, and MSGP Methods
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DOI: 10.1155/2021/8545379
Abstract: Over a billion people travel by air all over the world every year, and there are many in-flight retailing opportunities for the airline industry. This paper proposes a novel integration fuzzy analytical hierarchy process (FAHP),… read more here.
Keywords: free product; flight; duty free; selection ... See more keywords
Asphericity of positive free product length 4 relative group presentations
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DOI: 10.1515/forum-2017-0141
Abstract: Abstract Excluding some exceptional cases, we determine the asphericity of the relative presentation ???? = 〈 G , x ∣ a x m b x n 〉 {\mathcal{P}=\langle G,x\mid ax^{m}bx^{n}\rangle} , where… read more here.
Keywords: positive free; free product; relative group; asphericity positive ... See more keywords