Results 41 to 50 of about 3,327,591 (338)
Definability of linear equation systems over groups and rings [PDF]
Logical Methods in Computer Science, 2013 Motivated by the quest for a logic for PTIME and recent insights that the descriptive complexity of problems from linear algebra is a crucial aspect of this problem, we study the solvability of linear equation systems over finite groups and rings from ...
Anuj Dawar +4 more
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Finite automata over algebraic structures: models and some methods of analysis [PDF]
Computer Science Journal of Moldova, 2015 In this paper some results of research in two new trends of finite automata theory are presented. For understanding the value and the aim of these researches some short retrospective analysis of development of finite automata theory is given.
Volodymyr V. Skobelev +1 more
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Graded Rings Associated with Factorizable Finite Groups
Mathematics, 2023 Let R be an associative ring with unity, X be a finite group, H be a subgroup of X, and G be a set of left coset representatives for the left action of H on X.
Mohammed M. Al-Shomrani, Najla Al-Subaie
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A Coefficient Ring for Finite Noncommutative Rings [PDF]
Proceedings of the American Mathematical Society, 1972 We prove that every finite p -ring R contains a unique (up to isomorphism) subring S such that
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Rings with finite decomposition of identity [PDF]
Ukrainian Mathematical Journal, 2011 A ring is called an FDI-ring if it has a decomposition of identity into a finite sum of pairwise orthogonal primitive idempotents. This notion generalizes right Artinian, right Noetherian, semiperfect and Goldie rings. The authors first present a survey of various finiteness conditions related to FDI-rings.
Dokuchaev, M.A. +2 more
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THE SPACE OF FINITELY GENERATED RINGS [PDF]
International Journal of Algebra and Computation, 2009 The space of marked commutative rings on n given generators is a compact metrizable space. We compute the Cantor–Bendixson rank of any member of this space. For instance, the Cantor–Bendixson rank of the free commutative ring on n generators is ωn, where ω is the smallest infinite ordinal.
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On LCD, self dual and isodual cyclic codes over finite chain rings [PDF]
, 2022 Altres ajuts: acords transformatius de la UABIn this paper, LCD cyclic, self dual and isodual codes over finite chain rings are investigated. It was proven recently that a non-free LCD cyclic code does not exist over finite chain rings.
Fernández Córdoba, Cristina +2 more
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Thermal Effects on Diesel Engine Piston and Piston Compression Rings [PDF]
Engineering and Technology Journal, 2009 This paper introduces an analytical study on the thermal effects on the diesel engine piston and its compresion rings during the contact between the piston and its compression rings .A three dimensional finite element model is built for the piston and ...
Ahmed A. Al-Beiruti +2 more
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Unramified representations of reductive groups over finite rings
, 2009 Lusztig has given a construction of certain representations of reductive groups over finite local principal ideal rings of characteristic p, extending the construction of Deligne and Lusztig of representations of reductive groups over finite fields.
Stasinski, Alexander
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Formal Groups and Hopf Algebras over Discrete Rings [PDF]
, 1974 A theory of formal schemes and groups over abitrary rings is presented. The flat formal schemes in this theory have coalgebras of distributions which behave in the usual way. Frobenius and Verschiebung maps are studied.
Robert A. Morris +3 more
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