Abstract
LetX be a simply connected space of LS category two. We show that the LS category ofB aut X is not finite whenX is not coformal or satisfies Poincaré duality.
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References
H.J. Baues and J.M. Lemaire,Minimal models in homotopy theory, Math. Ann. 225 (1977), 219–242.
A. Dold,Halbexacte Homotopiefunktoren, Lecture notes in mathematics, vol. 12 (1966), Springer-Verlag.
A. Dold and R. Lashoff,Principal quasi-fibrations and fibre homotopy equivalence of bundles, Illinois J. Math. 3 (1959), 285–305.
E. Dror and A. Zabrodsky,Unipotency and nilpotency in homotopy equivalences, Topology 18 (1979), 187–197.
Y. Félix and S. Halperin,Rational LS-category and its applications, Trans. A.M.S. 273 (1982), 1–17.
Y. Félix, S. Halperin, C. Jacobsson, C. Löfwall and J.-C. Thomas,The radical of the homotopy Lie algebra, Amer. J. of Math. 110 (1988), 301–322.
Y. Félix, S. Halperin and J.-C. Thomas,Engel elements in the homotopy Lie algebra, J. of Algebra 144 (1991), 67–78.
Y. Félix, S. Halperin, J.-M. Lemaire et J.C. Thomas.Mod p loop space homology, Inventiones math. 95 (1989), 247–262.
Y. Félix and J.-C. Thomas,Sur la structure des espaces de LS catégorie deux, Ill. Jour. Math. 30 (1986), 574–593.
J.-B. Gatsinzi,LS category of classifying spaces, II, Bul. Belg. Math. Soc. 3 (1996), 243–248.
J.-B. Gatsinzi,The homotopy Lie algebra of classifying spaces, to appear in J. Pure and Applied Algebra.
D.H. Gottlieb,Evaluation subgroups of homotopy groups, Amer. J. of math. 91 (1969), 729–756.
S. Halperin,Lectures on minimal models, Mémoire de la Société Mathématique de France, 9–10, 1983.
S. Halperin and J.M. Lemaire,Suites inertes dans les algèbres de Lie Graduées, Math. Scand. 61 (1987), 39–67.
P. Lambrechts,Croissance des nombres de Betti rationnels de l’espace des lacets libres d’un espace biformel, Rapport 209, Séminaire de Mathématique, Université Catholique de Louvain, 1992.
D. Quillen,Rational homotopy theory, Annals of Math. (2) 90 (1969), 205–295.
M. Schlessinger and J. Stasheff,Deformations theory and rational homotopy type, preprint.
J. Stasheff,Rational Poincaré duality spaces, Illinois J. of Math. 27 (1983), 104–109.
D. Sullivan,Infinitesimal computations in topology, Publ. Math. I.H.E.S. 47 (1977), 269–331.
D. Tanré,Homotopie rationnelle; modèles de Chen, Quillen, Sullivan, Lecture notes in mathematics, vol. 1025, Springer-Verlag, 1983.
G.H. Toomer,Lusternik-Schnirelmann category and Moore spectral sequence, Math. Z. 138 (1974), 123–143.
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Supported by a Humboldt-Stiftung research fellowship.
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Gatsinzi, J.B. LS category of classifying spaces and 2-cones. Manuscripta Math 94, 243–252 (1997). https://doi.org/10.1007/BF02677850
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DOI: https://doi.org/10.1007/BF02677850