Mod 2 degree and a generalized No Retraction Theorem

We provide elementary proofs of generalized versions of the No Retraction Theorem and Sperner's Lemma, and a simple definition of mod 2 degree of certain maps. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Bibliographic Details
Published in:Mathematische Nachrichten 2006-04, Vol.279 (5-6), p.490-494
Main Author: Bloch, Ethan D.
Format: Article
Language:English
Subjects:
degree of a map
No Retraction Theorem
Sperner's Lemma
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Description
Summary:We provide elementary proofs of generalized versions of the No Retraction Theorem and Sperner's Lemma, and a simple definition of mod 2 degree of certain maps. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:0025-584X
1522-2616
DOI:10.1002/mana.200310373