On anticommutative semirings.
Ratti, J.S., Lin, Y.F. (1989)
International Journal of Mathematics and Mathematical Sciences
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Ratti, J.S., Lin, Y.F. (1989)
International Journal of Mathematics and Mathematical Sciences
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Wacław Szymański (1977)
Annales Polonici Mathematici
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Rechnoi, V. (2005)
Lobachevskii Journal of Mathematics
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Dorota Bród, Anetta Szynal-Liana, Iwona Włoch (2022)
Czechoslovak Mathematical Journal
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We study generalized commutative Jacobsthal quaternions and generalized commutative Jacobsthal-Lucas quaternions. We present some properties of these quaternions and the relations between the generalized commutative Jacobsthal quaternions and generalized commutative Jacobsthal-Lucas quaternions.
Vladimir Volenec (1987)
Stochastica
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A laterally commutative heap can be defined on a given set iff there is the structure of a TST-space on this set.
Ivan Chajda (2007)
Discussiones Mathematicae - General Algebra and Applications
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The concept of a commutative directoid was introduced by J. Ježek and R. Quackenbush in 1990. We complete this algebra with involutions in its sections and show that it can be converted into a certain implication algebra. Asking several additional conditions, we show whether this directoid is sectionally complemented or whether the section is an NMV-algebra.
Luca Aceto, Zoltán Ésik, Anna Ingólfsdóttir (2002)
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
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We show that the validity of Parikh’s theorem for context-free languages depends only on a few equational properties of least pre-fixed points. Moreover, we exhibit an infinite basis of -term equations of continuous commutative idempotent semirings.
Hamid Kulosman (2024)
Commentationes Mathematicae Universitatis Carolinae
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The purpose of this paper is to study the commutative pseudomeadows, the structure which is defined in the same way as commutative meadows, except that the existence of a multiplicative identity is not required. We extend the characterization of finite commutative meadows, given by I. Bethke, P. Rodenburg, and A. Sevenster in their paper (2015), to the case of commutative pseudomeadows with finitely many idempotents. We also extend the well-known characterization of general commutative...
Roland Coghetto (2015)
Formalized Mathematics
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We formalize that the image of a semiring of sets [17] by an injective function is a semiring of sets.We offer a non-trivial example of a semiring of sets in a topological space [21]. Finally, we show that the finite product of a semiring of sets is also a semiring of sets [21] and that the finite product of a classical semiring of sets [8] is a classical semiring of sets. In this case, we use here the notation from the book of Aliprantis and Border [1].
Peter Guthrie Tait
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Hebisch, U., Weinert, H.J. (1990)
Mathematica Pannonica
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