Results 51 to 60 of about 99 (88)
Hereditary crossed product orders over discrete valuation rings
, 2012 In this paper, we consider weak crossed product orders Af=∑Sxσ with coefficients in the integral closure S of a discrete valuation ring R in a tamely ramified Galois extension of the field of fractions of R.
Wilson, Christopher James
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A semigroup-theoretical view of direct-sum decompositions and associated combinatorial problems
, 2015 Let R be a ring and let C be a small class of right R-modules which is closed under finite direct sums, direct summands, and isomorphisms. Let V(C) denote a set of representatives of isomorphism classes in C and, for any module M in C, let [M] denote the
D. J. Grynkiewicz +7 more
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SHIFTED WITT GROUPS OF SEMI-LOCAL RINGS
, 2008 . We show that the odd-indexed derived Witt groups of a semilocal ring with trivial involution vanish.
Paul Balmer, Raman Preeti
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, 2023 Let $G$ be a linear algebraic group over an infinite field $k$. Loosely speaking, a $G$-torsor over $k$-variety is said to be versal if it specializes to every $G$-torsor over any $k$-field. The existence of versal torsors is well-known.
First, Uriya A.
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Symmetric Forms over Semilocal Rings
, 2009 В работе рассматриваются симметричные матрицы, квадрики и квадратичные формы (включая вырожденные) над полулокальными кольцами.The necessary and sufficient conditions for congruence of quadratic forms over a local ring with a principal maximal ideal ...
Старикова, Ольга А. +1 more
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Solitons in low-dimensional sigma models [PDF]
, 1997 The aim of this thesis is to study topological soliton solutions in classical field theories, called sigma models, on a three-dimensional space. In chapter 1 we review the general field-theoretical framework of classical soliton solutions and exemplify ...
Gladikowski, J., Gladikowski, Jens
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Beiträge zur ganzzahligen Darstellungstheorie von Gruppen
, 2013 This thesis contributes to the integral representation theory of groups. Topics treated include: the integral isomorphism problem --- if the group rings ZG and ZH are isomorphic, are the finite groups G and H isomorphic?, the Zassenhaus conjecture ...
Hertweck, Martin
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Locally compact semilocal rings [PDF]
Bulletin of the American Mathematical Society, 1967 openaire +2 more sources
, 1997 In this paper we define maximal $MV$-algebras, a concept similar to the maximal rings and maximal distributive lattices. We prove that any maximal $MV$-algebra is semilocal, then we characterize a maximal $MV$-algebras as finite direct product of local ...
Lettieri, Ada +2 more
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