Publications Meetings The Profession Membership Programs Math Samplings Policy & Advocacy In the News About the AMS
|
   
Mobile Device Pairing
Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(e) ISSN 0002-9939(p)

     

Combinatorial description of the homotopy groups of wedge of spheres

Author(s): Hao Zhao; Xiangjun Wang
Journal: Proc. Amer. Math. Soc. 137 (2009), 371-380.
MSC (2000): Primary 55U10; Secondary 55Q40
Posted: July 30, 2008
MathSciNet review: 2439462
Retrieve article in: PDF

Abstract | References | Similar articles | Additional information

Abstract: In this paper, we give a combinatorial description of the homotopy groups of a wedge of spheres. This result generalizes that of J. Wu on the homotopy groups of a wedge of 2-spheres. In particular, the higher homotopy groups of spheres are given as the centers of certain combinatorially described groups with special generators and relations.


References:

1.
D. M. Kan, On c.s.s. complexes, Amer. J. Math., 79(1957), 449-476. MR 0090047 (19:759e)

2.
E. B. Curtis, Simplicial homotopy theory, Advances in Math. 6, 1971, 107-209. MR 0279808 (43:5529)

3.
D. M. Kan, A combinatorial definition of homotopy groups, Ann. of Math. (2), 67(1958), 282-312. MR 0111032 (22:1897)

4.
J. Wu, Combinatorial descriptions of homotopy groups of certain spaces, Math. Proc. Camb. Philos. Soc., 130(2001), 489-513. MR 1816806 (2003e:55014)

5.
J. P. May, Simplicial objects in algebraic topology, Math. Studies 11, van Nostrand, Princeton, NJ, Toronto, London, 1967. MR 0222892 (36:5942)

6.
J. Milnor, On the construction $ FK$, Algebraic Topology-A Student Guide, by J. F. Adams, LMS Lec. Note. Ser. 4, Cambridge Univ. Press, 1972, 119-136.

7.
W. Magnus, A. Karrass and D. Solitar, Combinatorial group theory, Interscience Publishers, New York, London, Sydney, 1966. MR 0207802 (34:7617)

8.
J. Wu, A braided simplicial group, Proc. London Math. Soc. (3), 84(2002), 645-662. MR 1888426 (2003e:20041)

9.
J. S. Birman, Braids, links and mapping class groups, Annals of Math. Studies 82, Princeton University Press; University of Tokyo Press, 1974. MR 0375281 (51:11477)

10.
A. J. Berrick, F. R. Cohen, Y. L. Wong and J. Wu, Configurations, braids and homotopy groups, J. Amer. Math. Soc., 19(2006), 265-326. MR 2188127 (2007e:20073)


Similar Articles:

Retrieve articles in Proceedings of the American Mathematical Society with MSC (2000): 55U10, 55Q40

Retrieve articles in all Journals with MSC (2000): 55U10, 55Q40


Additional Information:

Hao Zhao
Affiliation: School of Mathematical Sciences, Nankai University, Tianjin 300071, People's Republic of China
Address at time of publication: School of Mathematics, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
Email: Hao.Zhao@manchester.ac.uk

Xiangjun Wang
Affiliation: School of Mathematical Sciences, Nankai University, Tianjin 300071, People's Republic of China
Email: xjwang@nankai.edu.cn

DOI: 10.1090/S0002-9939-08-09505-1
PII: S 0002-9939(08)09505-1
Keywords: Simplicial set, simplicial group, homotopy group of sphere
Received by editor(s): December 7, 2007
Posted: July 30, 2008
Additional Notes: This project is supported by NSFC, grant No. 10771105.
Communicated by: Paul Goerss
Copyright of article: Copyright 2008, American Mathematical Society




AMS and Social Media LinkedIn Facebook Podcasts Twitter YouTube RSS Feeds Blogs Wikipedia