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math.SG2005★ 53 cited
Calabi quasi-morphisms for some non-monotone symplectic manifolds
Yaron Ostrover
In this work we construct Calabi quasi-morphisms on the universal cover of the group Ham(M) of Hamiltonian diffeomorphisms for some non-monotone symplectic manifolds. This compleme…
math.SG2005
On the extremality of Hofer's metric on the group of Hamiltonian diffeomorphisms
Yaron Ostrover, Roy Wagner
Let M be a closed symplectic manifold, and let | | be a norm on the space of all smooth functions on M, which are zero-mean normalized with respect to the canonical volume form. We…