Results 331 to 340 of about 2,942,043 (344)

Casson's Idea about 3-Manifolds whose Universal Cover is R3

International journal of algebra and computation, 1991
Metric conditions "Cα" and "" are defined for finite group presentations. If the fundamental group of a closed aspherical 3-manifold has some presentation which satisfies C2 or , then its universal cover is simply connected at infinity.
J. Stallings, S. Gersten
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Triple Covers in Algebraic Geometry

American Journal of Mathematics, 1985
The aim of the paper under review is to develop a theory of triple covers in algebraic geometry. One of the most important general result obtained says that a triple cover \(X\to Y\) (with X and Y irreducible varieties over an algebraically closed field) is determined by a rank-two vector bundle E and a map \(S^ 3E\to \bigwedge^ 2E\), and conversely ...
openaire   +2 more sources

Encyclopedia of Mathematics

, 2005
Encyclopedia of Mathematics is a comprehensive one-volume encyclopedia designed for high school through early college students. More than 1,000 entries, more than 125 photographs and illustrations, and numerous essays cover the principal areas and issues
James Tanton
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Effect Algebras Which Can Be Covered by MV-Algebras

International Journal of Theoretical Physics, 2002
Effect algebras are partial abelian monoids with a sort of negation operation: they yield a generalization of various kinds of structures currently used in the algebraic treatment of operator algebras, including Chang's MV algebras. The main result of this paper gives added evidence to the intuition that MV algebras stand to effect algebras as Boolean ...
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The Projective Cover of the Trivial Module Over a Group Algebra of a Finite Group

, 2014
Shigeo Koshitani
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The universal cover of a representation-finite algebra

, 1981
P. Gabriel
semanticscholar   +1 more source

The university of Florida sparse matrix collection

TOMS, 2011
T. Davis, Yifan Hu
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A Beginner’s Guide to Edge and Cover Ideals

, 2013
A. Tuyl
semanticscholar   +1 more source

The Finite Element Method: Theory, Implementation, and Applications

, 2013
M. Larson, Fredrik Bengzon
semanticscholar   +1 more source

Feature Algebra

World Congress on Formal Methods, 2006
P. Höfner, Ridha Khédri, B. Möller
semanticscholar   +1 more source