The semiring of quotients of commutative semirings
Syed A. Huq (1973)
Colloquium Mathematicae
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Displaying similar documents to “Finite Product of Semiring of Sets”
The semiring of quotients of commutative semirings
Decomposition of a semiring into division semirings
Giraldes, E. (1980)
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Finitely generated commutative division semirings
Jaroslav Ježek, Tomáš Kepka (2010)
Acta Universitatis Carolinae. Mathematica et Physica
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A structure theory for a class of lattice ordered semirings
F. Smith (1966)
Fundamenta Mathematicae
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A note on finitely generated ideal-simple commutative semirings
Vítězslav Kala, Tomáš Kepka (2008)
Commentationes Mathematicae Universitatis Carolinae
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Many infinite finitely generated ideal-simple commutative semirings are additively idempotent. It is not clear whether this is true in general. However, to solve the problem, one can restrict oneself only to parasemifields.
Semirings without zero divisors.
Hebisch, U., Weinert, H.J. (1990)
Mathematica Pannonica
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A fully equational proof of Parikh’s theorem
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.