Results 11 to 20 of about 1,140 (171)
Indecomposable Direct Summands of Cohomologies of Curves
The Quarterly Journal of MathematicsAbstract Groups with a non-cyclic Sylow p-subgroup have too many representations over a field of characteristic p to describe them fully. A natural question arises, whether the world of representations coming from algebraic varieties with a group action is as vast as the realm of all modular representations.
Garnek, J. ; https://orcid.org/
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Direct summands of serial modules
Journal of Pure and Applied Algebra, 1998 The authors investigate the following problem: Is every direct summand of a serial module serial? They have got affirmative answers in some special cases. Every direct summand of a finite direct sum of copies of a uniserial module \(U\) is again a finite direct sum of copies of \(U\). If \(U_1,U_2,\dots,U_n\) are uniserial modules such that for any \(i,
NGUYEN VIET DUNG, FACCHINI, ALBERTO
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Direct summands of class groups
Journal of Number Theory, 1983 AbstractLet G be a finite abelian group, and F a global field of characteristic prime to the order of G. Then there exists a finite extension of F whose class group has a direct summand isomorphic to G.
Sonn, Jack
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On Goldie absolute direct summands in modular lattices [PDF]
, 2023 summary:Absolute direct summand in lattices is defined and some of its properties in modular lattices are studied. It is shown that in a certain class of modular lattices, the direct sum of two elements has absolute direct summand if and only if the ...
Shroff, Rupal
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Direct summands of Goldie extending elements in modular lattices [PDF]
, 2022 summary:In this paper some results on direct summands of Goldie extending elements are studied in a modular lattice. An element $a$ of a lattice $L$ with $0$ is said to be a Goldie extending element if and only if for every $b \leq a$ there exists a ...
Shroff, Rupal
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Bernstein-Sato functional equations, v -filtrations, and multiplier ideals of direct summands [PDF]
, 2021 This paper investigates the existence and properties of a Bernstein– Sato functional equation in nonregular settings. In particular, we construct D-modules in which such formal equations can be studied.
Álvarez Montaner, Josep +5 more
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MODULES WHOSE EXACT SUBMODULES ARE ESSENTIALLY EMBEDDED IN SUMMANDS
, 2022 In this article we study the condition that every exact submodule is essentially embedded in direct summands in a module. It is shown that the class of modules with former property is closed under direct sums. However, we provide examples which show that
TERCAN, ADNAN +2 more
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A uniform Chevalley theorem for direct summands of polynomial rings in mixed characteristic
, 2022 We prove an explicit uniform Chevalley theorem for direct summands of graded polynomial rings in mixed characteristic. Our strategy relies on the introduction of a new type of differential powers that does not require the existence of a p-derivation on ...
De Stefani A. +5 more
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C4- and D4-Modules via perspective direct summands
, 2018 In this article, we study the C4- and D4-modules in terms of perspective direct summands, providing new characterizations and results. Endomorphism rings of C4-modules and extensions of right C4-rings are also investigated.
Yasser Ibrahim +7 more
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Kuga–Satake Construction on Families of K3 Surfaces of Picard Rank 14
Mathematische Nachrichten, EarlyView.ABSTRACT The isometry between the type IV6 and the type II4 hermitian symmetric domains suggests a possible relation between suitable moduli spaces of K3 surfaces of Picard rank 14 and of polarized abelian 8‐folds with totally definite quaternion multiplication. We show how this isometry induces a geometrically meaningful map between such moduli spaces
Flora Poon
wiley +1 more source