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Gray's conjecture

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In mathematics, Gray's conjecture is a conjecture made by Brayton Gray in 1984 about maps between loop spaces of spheres. It was later proved by John Harper.

References

  1. Gray, Brayton (1984). "Unstable families related to the image of J". Mathematical Proceedings of the Cambridge Philosophical Society. 96 (1): 95–113. Bibcode:1984MPCPS..96...95G. doi:10.1017/S0305004100061971. ISSN 0305-0041. MR 0743705.
  2. Harper, John R. (1989). "A proof of Gray's conjecture". Algebraic topology (Evanston, IL, 1988). Contempemporary Mathematics. Vol. 96. Providence, Rhode Island: American Mathematical Society. pp. 189–195. MR 1022681.


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