Computational details-appendix to the article “Cartan matrices of selfinjective algebras of tubular type”
Jerzy Białkowski (2004)
Open Mathematics
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Jerzy Białkowski (2004)
Open Mathematics
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Hübner, Marion, Petersson, Holger P. (2004)
Beiträge zur Algebra und Geometrie
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Kawamoto, Naoki, Mitsukawa, Atsushi, Nam, Ki-Bong, Wang, Moon-Ok (2003)
Journal of Lie Theory
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Yosuke Ohnuki, Kaoru Takeda, Kunio Yamagata (1999)
Colloquium Mathematicae
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By an extension algebra of a finite-dimensional K-algebra A we mean a Hochschild extension algebra of A by the dual A-bimodule . We study the problem of when extension algebras of a K-algebra A are symmetric. (1) For an algebra A= KQ/I with an arbitrary finite quiver Q, we show a sufficient condition in terms of a 2-cocycle for an extension algebra to be symmetric. (2) Let L be a finite extension field of K. By using a given 2-cocycle of the K-algebra L, we construct a 2-cocycle of...
Flaut, Cristina (2006)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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Sergio Albeverio, Bakhrom A. Omirov, Isamiddin S. Rakhimov (2006)
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Khukhro, E.I. (2001)
Sibirskij Matematicheskij Zhurnal
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Dieterich, Ernst (2000)
AMA. Algebra Montpellier Announcements [electronic only]
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J. Monk (1993)
Banach Center Publications
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Grzegorz Bobiński, Christof Geiß, Andrzej Skowroński (2004)
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The main aim of the paper is to classify the discrete derived categories of bounded complexes of modules over finite dimensional algebras.
A. L. Barrenechea, C. C. Pena (2005)
Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques
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Zbigniew Leszczyński (1994)
Fundamenta Mathematicae
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The representation type of tensor product algebras of finite-dimensional algebras is considered. The characterization of algebras A, B such that A ⊗ B is of tame representation type is given in terms of the Gabriel quivers of the algebras A, B.
W. Królikowski (1991)
Annales Polonici Mathematici
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The concept of supercomplex structure is introduced in the pseudo-Euclidean Hurwitz pairs and its basic algebraic and geometric properties are described, e.g. a necessary and sufficient condition for the existence of such a structure is found.