On diffeomorphisms of even-dimensional discs.

Autor: Kupers, Alexander, Randal-Williams, Oscar
Předmět:
Zdroj: Journal of the American Mathematical Society; Jan2025, Vol. 38 Issue 1, p63-178, 116p
Abstrakt: We determine \pi _*(B\operatorname {Diff}_\partial (D^{2n})) \otimes \mathbb {Q} for 2n \geq 6 completely in degrees * \leq 4n-10, far beyond the pseudoisotopy stable range. Furthermore, above these degrees we discover a systematic structure in these homotopy groups: we determine them outside of certain "bands" of degrees. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index