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Calculation of Lin's Ext groups

Published online by Cambridge University Press:  24 October 2008

W. H. Lin ,
D. M. Davis ,
M. E. Mahowald  and
J. F. Adams
W. H. Lin
Affiliation:
National Chengchi University, Taipei, Taiwan.
D. M. Davis
Affiliation:
Lehigh University, Bethlehem, Pa. 18015, USA.
M. E. Mahowald
Affiliation:
Northwestern University, Evanston, Ill. 60201, USA.
J. F. Adams
Affiliation:
DPMMS, 16 Mill Lane, Cambridge CB2 1SB.
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Extract

The first-named author has proved interesting results about the stable homotopy and cohomotopy of spaces related to real projective space RP∞; these are presented in an accompanying paper (6). His proof is by the Adams spectral sequence, and so depends on the calculation of certain Ext groups. The object of this paper is to prove the required result about Ext groups. The proof to be given is not Lin's original proof, which involved substantial calculation; it follows an idea of the second and third authors. The version to be given incorporates modifications suggested later by the fourth author.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 87 , Issue 3 , May 1980 , pp. 459 - 469
Copyright
Copyright © Cambridge Philosophical Society 1980

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References

REFERENCES

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