Results 21 to 30 of about 3,851 (271)
On the computation of the HNF of a module over the ring of integers of a number field
Journal of Symbolic Computation, 2017 We present a variation of the modular algorithm for computing the Hermite normal form of an $\mathcal O_K$-module presented by Cohen, where $\mathcal O_K$ is the ring of integers of a number field $K$. An approach presented in (Cohen 1996) based on reductions modulo ideals was conjectured to run in polynomial time by Cohen, but so far, no such proof ...
Jean-François Biasse +2 more
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Degree bounds for projective division fields associated to elliptic modules with a trivial endomorphism ring [PDF]
Journal de théorie des nombres de Bordeaux, 2021 Let k be a global field, let A be a Dedekind domain with Quot (
Cojocaru, Alina Carmen, Jones, Nathan
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Characterizations of regular local rings via syzygy modules of the residue field [PDF]
Journal of Commutative Algebra, 2018 Let $R$ be a commutative Noetherian local ring with residue field $k$. We show that if a finite direct sum of syzygy modules of $k$ surjects onto `a semidualizing module' or `a non-zero maximal Cohen-Macaulay module of finite injective dimension', then $R$ is regular.
GHOSH, D, GUPTA, A, PUTHENPURAKAL, TJ
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, 2002 The main concern of this book is the study of Smarandache analogue properties of near-rings and Smarandache near-rings; so it does not promise to cover all concepts or the proofs of all ...
Vasantha, Kandasamy
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Research on a new magnetic-field-modulated brushless double-rotor machine with sinusoidal-permeance modulating ring [PDF]
AIP Advances, 2017 The magnetic-field-modulated brushless double-rotor machine (MFM-BDRM), composed of a stator, a modulating ring rotor, and a PM rotor, is a kind of power-split device for hybrid electric vehicles (HEVs). In this paper, a new MFM-BDRM with sinusoidal-permeance modulating ring named Sinusoidal-Permeance-Modulating-Ring Brushless Double-Rotor Machine ...
Ping Zheng +4 more
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Enhanced spin wave propagation in magnonic rings by bias field modulation [PDF]
AIP Advances, 2017 We simulate the spin wave (SW) dynamics in ring structures and obtain the ω − k dispersion relations corresponding to the output waveguide. Different bias field configurations affect the transfer of SW power from one arm of the structure to the other arm.
G. Venkat +6 more
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On the Ring of Integers in an Algebraic Number Field as a representation Module of Galois Group [PDF]
Nagoya Mathematical Journal, 1960 1. Introduction. It is known that there are only three rationally inequivalent classes of indecomposable integral representations of a cyclic group of prime order l. The representations of these classes are: (I) identical representation,(II) rationally irreducible representation of degree l – 1,(III) indecomposable representation consisting of one ...
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On maximal immediate extensions of valued division algebras [PDF]
, 2003 We show an extension theorem for strictly contracting bilinear mappings into a spherically complete valued vector space and we apply this result to prove that every maximal valued division algebra having the same characteristic as its residue division ...
Schörner, Erwin
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SMARANDACHE SPECIAL DEFINITE ALGEBRAIC STRUCTURES [PDF]
, 2009 Introducing the notion of Smarandache special definite algebraic structures, also called equivalently as Smarandache definite special algebraic structures.
Vasantha, Kandasamy
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LINKAGE AND DUALITY OF MODULES
, 2009 Martsinkovsky and Strooker [13] recently introduced module theoretic linkage using syzygy and transpose. This generalization brings possibility of much application of linkage, especially, to homological theory of modules. In the present paper, we connect
Nishida, Kenji, Kenji Nishida
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