NDLI: On the Second Homotopy Module of Two-Dimensional CW Complexes

Content Provider	Scilit
Author	Dyer, M. N.
Copyright Year	1976
Description	Let be a connected -dimensional complex. This note reproves from a very simple point of view two classical theorems of H. Hopf relating the homology of the fundamental group of and the Hurewicz map on . This point of view also allows the dual theorems to be proved. If is a finite group, a new interpretation is given for in terms of .
Related Links	http://www.ams.org/proc/1976-55-02/S0002-9939-1976-0410739-6/S0002-9939-1976-0410739-6.pdf
Ending Page	404
Page Count	5
Starting Page	400
ISSN	00029939
e-ISSN	10886826
DOI	10.2307/2041733
Journal	Proceedings of the American Mathematical Society
Issue Number	2
Volume Number	55
Language	English
Publisher	Duke University Press
Access Restriction	Open
Subject Keyword	Logic Dimensional Cw Second Homotopy Cw Complexes Homotopy Module Two Dimensional
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics

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On the Second Homotopy Module of Two-Dimensional CW Complexes