Geodesic
Extensions of Weyl and Schur functors
Homology, homotopy, and applications, Tome 11 (2009) no. 2, pp. 27-48.

Voir la notice de l'article provenant de la source International Press of Boston

We study Ext-groups in the category of strict polynomial functors. The main result is a computation of the Ext-groups between twisted Weyl and Schur functors for a large class of Young diagrams.
DOI : 10.4310/HHA.2009.v11.n2.a3
Classification : 18G15, 20G10, 20G15
Keywords: Ext-groups, Schur functor 
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     author = {Marcin Cha{\l}upnik},
     title = {Extensions of {Weyl} and {Schur} functors},
     journal = {Homology, homotopy, and applications},
     pages = {27--48},
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     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4310/HHA.2009.v11.n2.a3/}
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Marcin Chałupnik. Extensions of Weyl and Schur functors. Homology, homotopy, and applications, Tome 11 (2009) no. 2, pp. 27-48. doi : 10.4310/HHA.2009.v11.n2.a3. http://geodesic.mathdoc.fr/articles/10.4310/HHA.2009.v11.n2.a3/

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