76 citations · 308 across the 22 of their papers we have counts for
Showing 2020 · math.SGShow all
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math.SG2020★ 12 cited
Local rigidity, contact homeomorphisms, and conformal factors
Michael Usher
We show that if the image of a Legendrian submanifold under a contact homeomorphism (i.e. a homeomorphism that is a -limit of contactomorphisms) is smooth then it is Legendria…
math.SG2020★ 5 cited
Local rigidity, symplectic homeomorphisms, and coisotropic submanifolds
Michael Usher
We introduce the notion of a point on a locally closed subset of a symplectic manifold being "locally rigid" with respect to that subset, prove that this notion is invariant under…