We establish an algebraic version of the classical result that a G-map f between G-complexes which restricts to a homotopy equivalence f(H) on H-fixed sets for all subgroups H of G is a G-homotopy equivalence. This is used to give an alternative proof of a theorem of Bouc. We also include a number of illustrations and applications.
机构:
Department of Mathematics, Graduate School of Science, Osaka University, Toyonaka 560-0043Department of Mathematics, Graduate School of Science, Osaka University, Toyonaka 560-0043
Miyanishi M.
Masuda K.
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Department of Mathematics, Himeji Institute of Technology, Himeji 671-2201Department of Mathematics, Graduate School of Science, Osaka University, Toyonaka 560-0043
机构:
Department of Algebra, Steklov Institute of Mathematics, Russian Academy of Sciences, Moscow, 119991Department of Algebra, Steklov Institute of Mathematics, Russian Academy of Sciences, Moscow, 119991
机构:
Penn State Univ, Dept Math, University Pk, PA 16802 USA
Polish Acad Sci, Inst Matemat, PL-00656 Warsaw, PolandPenn State Univ, Dept Math, University Pk, PA 16802 USA
Baum, Paul F.
Hajac, Piotr M.
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Polish Acad Sci, Inst Matemat, PL-00656 Warsaw, Poland
Uniwersytet Warszawski, Katedra Metod Matemat Fis, PL-00682 Warsaw, PolandPenn State Univ, Dept Math, University Pk, PA 16802 USA