Gray's conjecture explained

In mathematics, Gray's conjecture is a conjecture made by Brayton Gray in 1984 about maps between loop spaces of spheres.^[1] It was later proved by John Harper.^[2]

Notes and References

1. Gray . Brayton . Unstable families related to the image of J . 10.1017/S0305004100061971 . 743705 . 1984 . Mathematical Proceedings of the Cambridge Philosophical Society . 0305-0041 . 96 . 1 . 95–113.
2. Book: Harper . John R. . Algebraic topology (Evanston, IL, 1988) . . Providence, Rhode Island . Contempemporary Mathematics . 1022681 . 1989 . 96 . A proof of Gray's conjecture . 189–195.