Results 11 to 20 of about 244,159 (188)
Definability of linear equation systems over groups and rings [PDF]
, 2012 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 +5 more
core +6 more sources
A ghost algebra of the double Burnside algebra in characteristic zero [PDF]
, 2012 For a finite group $G$, we introduce a multiplication on the $\QQ$-vector space with basis $\scrS_{G\times G}$, the set of subgroups of $G\times G$. The resulting $\QQ$-algebra $\Atilde$ can be considered as a ghost algebra for the double Burnside ring ...
Boltje, Robert, Danz, Susanne
core +1 more source
Which weakly ramified group actions admit a universal formal deformation? [PDF]
, 2008 Consider a formal (mixed-characteristic) deformation functor D of a representation of a finite group G as automorphisms of a power series ring k[[t]] over a perfect field k of positive characteristic. Assume that the action of G is weakly ramified, i.e.,
Byszewski, Jakub, Cornelissen, Gunther
core +3 more sources
, 2006 This book has four chapters. Chapter one is introductory in nature, for it recalls some basic definitions essential to make the book a self-contained one.
Kandasamy, W. B. Vasantha +1 more
core +3 more sources
Computing Nilpotent Quotients in Finitely Presented Lie Rings [PDF]
, 1996 A nilpotent quotient algorithm for finitely presented Lie rings over Z (LieNQ) is described. The paper studies graded and non-graded cases separately.
Schneider, Csaba
core +8 more sources
Constructions in public-key cryptography over matrix groups
, 2005 ISBN : 978-0-8218-4037-5International audienceThe purpose of the paper is to give new key agreement protocols (a multi-party extension of the protocol due to Anshel-Anshel-Goldfeld and a generalization of the Diffie-Hellman protocol from abelian to ...
Grigoriev, Dima, Ponomarenko, Ilia
core +3 more sources
Monoids of modules and arithmetic of direct-sum decompositions [PDF]
, 2014 Let $R$ be a (possibly noncommutative) ring and let $\mathcal C$ be a class of finitely generated (right) $R$-modules which is closed under finite direct sums, direct summands, and isomorphisms.
Baeth, Nicholas R., Geroldinger, Alfred
core +1 more source
Smith Normal Form in Combinatorics [PDF]
, 2015 This paper surveys some combinatorial aspects of Smith normal form, and more generally, diagonal form. The discussion includes general algebraic properties and interpretations of Smith normal form, critical groups of graphs, and Smith normal form of ...
Stanley, Richard P.
core +1 more source
Basic Module Theory over Non-Commutative Rings with Computational Aspects of Operator Algebras
, 2013 The present text surveys some relevant situations and results where basic Module Theory interacts with computational aspects of operator algebras. We tried to keep a balance between constructive and algebraic aspects.Comment: To appear in the Proceedings
A. Kandri-Rody +54 more
core +1 more source
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source