Abstract
We exhibit many examples of closed complex surfaces whose diffeomorphism groups are not simply connected and which contain loops that are not homotopic to loops of symplectomorphisms.
Citation
Gleb Smirnov. "From flops to diffeomorphism groups." Geom. Topol. 26 (2) 875 - 898, 2022. https://doi.org/10.2140/gt.2022.26.875
Information
Received: 7 June 2020; Revised: 23 August 2020; Accepted: 10 February 2021; Published: 2022
First available in Project Euclid: 5 July 2022
MathSciNet: MR4444270
zbMATH: 1507.57018
Digital Object Identifier: 10.2140/gt.2022.26.875
Subjects:
Primary:
14J80
,
32J15
,
32Q65
,
57K43
,
58D05
Keywords:
diffeomorphism groups
,
flop
,
Seiberg–Witten invariants
Rights: Copyright © 2022 Mathematical Sciences Publishers
