Results 11 to 20 of about 4,966,064 (325)
The free product of algebras [PDF]
Illinois Journal of Mathematics, 1968 Thomas W. Hungerford
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Product-free sets in the free group
Proceedings of the 12th European Conference on Combinatorics, Graph Theory and Applications, 2023 We prove that product-free sets of the free group over a finite alphabet have maximum density $1/2$ with respect to the natural measure that assigns total weight one to each set of irreducible words of a given length. This confirms a conjecture of Leader, Letzter, Narayanan and Walters. In more general terms, we actually prove that strongly $k$-product-
Ortega Sánchez Colomer, Miquel +2 more
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Annales de l'Institut Fourier, 2019 We apply the free product construction to various local algebras in algebraic quantum field theory. If we take the free product of infinitely many identical half-sided modular inclusions with ergodic canonical endomorphism, we obtain a half-sided modular inclusion with ergodic canonical endomorphism and trivial relative commutant. On the other hand, if
Longo, Roberto +2 more
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Algebra universalis, 2021 We construct the free products of arbitrary digroups, and thus we solve an open problem of Zhuchok.
Zerui Zhang +2 more
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Free product on semihypergroups
Semigroup Forum, 2021 In a previous paper [1] [MR4101040], we initiated a systematic study of semihypergroups and had a thorough discussion about some important analytic and algebraic objects associated to this class of objects. In this paper, we investigate free structures on the category of semihypergroups.
Choiti Bandyopadhyay +1 more
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Product-free sets in the free semigroup [PDF]
European Journal of Combinatorics, 2020 In this paper, we study product-free subsets of the free semigroup over a finite alphabet $A$. We prove that the maximum density of a product-free subset of the free semigroup over $A$, with respect to the natural measure that assigns a weight of $|A|^{-n}$ to each word of length $n$, is precisely $1/2$.
Leader, I +3 more
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Free subgroups of the free product of cyclic groups [PDF]
Mathematics of Computation, 1978 Two kinds of recurrence relation for the number of subgroups of finite index in a free product of finitely many cyclic groups are given. An asymptotic formula is obtained from the first of these relations.
W Stothers
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Product Market Competition, Free Cash Flow, Over Investment and Low Investment [PDF]
مطالعات تجربی حسابداری مالی, 2016 The goal of this paper is to examine the association between product marketcompetition and corporate investment decisions on particularly, over investment and low investment. The managers have different incentives to keep cash in firms.
Seyed Kazem Ebrahimi +2 more
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Hypercontractivity for free products [PDF]
Annales scientifiques de l'École normale supérieure, 2015 Minor ...
Junge, Marius +4 more
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Boolean Algebras with Semigroup Operators: Free Product and Free Objects
Journal of Mathematics, 2023 Two important algebraic structures are S-acts and Boolean algebras. Combining these two structures, one gets S-Boolean algebras, equipped with a compatible right action of a monoid S which is a special case of Boolean algebras with operators.
H. Barzegar
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