Results 31 to 40 of about 30,452,406 (85)

Linear Algebra [PDF]

open access: yes, 2012
Linear algebra occupies a central place in modern mathematics. Also, it is a beautiful and mature field of mathematics, and mathematicians have developed highly effective methods for solving its problems.

core   +2 more sources

DMA:an algebra for multicriteria spatial modeling [PDF]

open access: yes, 2006
The objective of this paper is to propose a new algebra, called decision map algebra (DMA), especially devoted to multicriteria spatial modeling. DMA is a generic and context-independent modeling language inspired from map algebra and other similar ...
Chakhar, Salem, Mousseau, Vincent
core   +1 more source

A Cartan-Eilenberg approach to Homotopical Algebra [PDF]

open access: yes, 2010
In this paper we propose an approach to homotopical algebra where the basic ingredient is a category with two classes of distinguished morphisms: strong and weak equivalences.
Navarro, Vicenç (Navarro Aznar)   +8 more
core   +1 more source

A Survey on Seifert Fiber Space Theorem

open access: yesInternational Scholarly Research Notices, Volume 2014, Issue 1, 2014., 2014
We review the history of the proof of the Seifert fiber space theorem, as well as its motivations in 3‐manifold topology and its generalizations.
Jean-Philippe Préaux   +2 more
wiley   +1 more source

On a characterization of the lattice of subsystems of a transition system

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2006, Issue 1, 2006., 2006
It was first proved by Birkhoff and Frink, and the result now belongs to the folklore, that any algebraic lattice is up to isomorphism the lattice of subuniverses of a universal algebra. A study of subsystems of a transition system yields a new algebraic concept, that of a strongly algebraic lattice.
J. P. Mavoungou, C. Nkuimi-Jugnia
wiley   +1 more source

Nilpotent subspaces of maximal dimension in semisimple Lie algebras [PDF]

open access: yes, 2006
We show that a linear subspace of a reductive Lie algebra g that consists of nilpotent elements has dimension at most equal to the number of positive roots, and that any nilpotent subspace attaining this upper bound is equal to the nilradical of a Borel ...
Kuttler, J   +8 more
core   +1 more source

On chiral differential operators over homogeneous spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 26, Issue 2, Page 83-106, 2001., 2001
We give a classification and construction of chiral algebras of differential operators over semisimple algebraic groups G and over homogeneous spaces G/N and G/P where N is a nilpotent and P a parabolic subgroup.
Vassily Gorbounov   +2 more
wiley   +1 more source

Parti d’un exercice, on se retrouve avec une théorie [PDF]

open access: yes, 2004
Op 3 juni 2003 kreeg Jean-Pierre Serre de eerste Abelprijs, een bedrag van D 750.000,–, voor het “spelen van een sleutelrol in het vormen van vele delen van de moderne wiskunde, zoals topologie, algebraïsche meetkunde en getaltheorie”.
Dep Wiskunde   +3 more
core  

Convergence of formal invertible CR mappings between minimal holomorphically nondegenerate real analytic hypersurfaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 26, Issue 5, Page 281-302, 2001., 2001
Recent advances in CR (Cauchy‐Riemann) geometry have raised interesting fine questions about the regularity of CR mappings between real analytic hypersurfaces. In analogy with the known optimal results about the algebraicity of holomorphic mappings between real algebraic sets, some statements about the optimal regularity of formal CR mappings between ...
Joël Merker
wiley   +1 more source

Topologie structurale

open access: yes, 1992
Titre de la couv.Publ. comme nos 18 et 19, 1992 de la revue Topologie structurale, ISSN 0226-9171Notes (part.
Colloque international Représentation de l'espace et habiletés spatiales (1991 : Université du Québec à Montréal)
core   +1 more source

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