The associative operad and the weak order on the symmetric groups.
Aguiar, Marcelo, Livernet, Muriel (2007)
Journal of Homotopy and Related Structures
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Aguiar, Marcelo, Livernet, Muriel (2007)
Journal of Homotopy and Related Structures
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Tirao, Paulo (2002)
Journal of Lie Theory
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Larsson, Anna (2002)
Homology, Homotopy and Applications
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Enriquez, Benjamin (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...
Lambe, Larry A., Seiler, Werner M. (2002)
Georgian Mathematical Journal
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Maciej Burnecki (1993)
Colloquium Mathematicae
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Moreno-Socías, Guillermo, Snellman, Jan (2002)
Homology, Homotopy and Applications
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Enriquez, Benjamin, Gavarini, Fabio (2006)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Herzog, Jürgen, Restuccia, Gaetana, Rinaldo, Giancarlo (2006)
Beiträge zur Algebra und Geometrie
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Blessenohl, D., Laue, H. (1992)
Séminaire Lotharingien de Combinatoire [electronic only]
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Bovdi, Victor (2006)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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