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Homotopy Theory

  • Glen E. Bredon
Part of the Graduate Texts in Mathematics book series (GTM, volume 139)

Abstract

One of the fundamental questions in topology is the “extension problem.” This asks for criteria for being able to extend a map g: AY defined on a subspace A of X to all of X. Of course, this cannot always be done as is shown by the case A = Y = S n , X = D n+1.

Keywords

Exact Sequence Base Point Commutative Diagram Homotopy Group Homotopy Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1993

Authors and Affiliations

  • Glen E. Bredon
    • 1
  1. 1.Department of MathematicsRutgers UniversityNew BrunswickUSA

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