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math.SG2017
On symplectic stabilisations and mapping classes
Ailsa Keating
We are interested in comparing properties of symplectic mapping class groups of symplectic manifolds of dimension four or higher with properties of classical mapping class groups o…
math.SG2017
Symplectomorphisms of exotic discs
Roger Casals, Ailsa Keating, Ivan Smith
We construct a symplectic structure on a disc that admits a compactly supported symplectomorphism which is not smoothly isotopic to the identity. The symplectic structure has an ov…