Une formule pour les extensions de foncteurs composés

Alain Troesch

Fundamenta Mathematicae (2003)

  • Volume: 177, Issue: 1, page 55-82
  • ISSN: 0016-2736

Abstract

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Let p be a prime, and let ℱ be the category of functors from the finite p -vector spaces to all p -vector spaces. The object Id of ℱ is the inclusion functor. Let F and G be two objects in ℱ. If F and G satisfy suitable conditions, the main result of this paper allows one to compute E x t * ℱ ( I d , G ∘ F ) from the knowledge of E x t * ℱ ( I d , F ) and E x t * ℱ ( I d , G ) .

How to cite

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Alain Troesch. "Une formule pour les extensions de foncteurs composés." Fundamenta Mathematicae 177.1 (2003): 55-82. <http://eudml.org/doc/282847>.

@article{AlainTroesch2003,
author = {Alain Troesch},
journal = {Fundamenta Mathematicae},
keywords = {vector spaces over ; category of functors; Yoneda modules; symmetric powers; polynomial functors},
language = {fre},
number = {1},
pages = {55-82},
title = {Une formule pour les extensions de foncteurs composés},
url = {http://eudml.org/doc/282847},
volume = {177},
year = {2003},
}

TY - JOUR
AU - Alain Troesch
TI - Une formule pour les extensions de foncteurs composés
JO - Fundamenta Mathematicae
PY - 2003
VL - 177
IS - 1
SP - 55
EP - 82
LA - fre
KW - vector spaces over ; category of functors; Yoneda modules; symmetric powers; polynomial functors
UR - http://eudml.org/doc/282847
ER -

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