English

Generic representations of orthogonal groups: projective functors in the category Fquad

Algebraic Topology 2007-05-23 v1 Category Theory

Abstract

In this paper, we continue the study of the category of functors Fquad, associated to F_2-vector spaces equipped with a nondegenerate quadratic form, initiated in two previous papers of the author. We define a filtration of the standard projective objects in Fquad; this refines to give a decomposition into indecomposable factors of the two first standard projective objects in Fquad. As an application of these two decompositions, we give a complete description of the polynomial functors of the category Fquad.

Keywords

Cite

@article{arxiv.0704.0502,
  title  = {Generic representations of orthogonal groups: projective functors in the category Fquad},
  author = {Christine Vespa},
  journal= {arXiv preprint arXiv:0704.0502},
  year   = {2007}
}

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32 pages