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Communications in Algebra, 1996
In dealing with the central extensions of a finite group G one finds that although covers need not be isomorphic, for each such H there exists a cover for which H is a. homomorphic image [1]. For finite dimensional Lie algebras, covers are isomorphic. We shall show that the second property also holds for Lie algebras.
Peggy Batten, Ernest Stitzinger
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In dealing with the central extensions of a finite group G one finds that although covers need not be isomorphic, for each such H there exists a cover for which H is a. homomorphic image [1]. For finite dimensional Lie algebras, covers are isomorphic. We shall show that the second property also holds for Lie algebras.
Peggy Batten, Ernest Stitzinger
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Algebraic Modelling of Covering Arrays
2017We introduce a novel technique to model and compute binary covering arrays, discrete combinatorial structures, based on a tuple-level modelling and using methods arising from linear algebra, commutative algebra and symbolic computation. Concrete instances of covering arrays for given parameters will arise as points in a generated variety of a system of
Bernhard Garn, Dimitris E. Simos
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Covering Spaces of Algebraic Groups
The American Mathematical Monthly, 1976(1976). Covering Spaces of Algebraic Groups. The American Mathematical Monthly: Vol. 83, No. 8, pp. 614-621.
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The Projective Cover of the Trivial Module Over a Group Algebra of a Finite Group
, 2014Shigeo Koshitani
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The universal cover of a representation-finite algebra
, 1981P. Gabriel
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The university of Florida sparse matrix collection
TOMS, 2011T. Davis, Yifan Hu
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Variational algorithms for linear algebra
Science Bulletin, 2021Xiaosi Xu, Jinzhao Sun, Suguru Endo
exaly