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Columbia University
A geometric construction of a Calabi quasimorphism on projective space
Abstract
dc:descriptionWe use the rotation numbers defined by Théret in [T] to construct a quasimorphism on the universal cover of the Hamiltonian group of CPⁿ. We also show that this quasimorphism agrees with the Calabi invariant for isotopies that are supported in displaceable subsets of CPⁿ.
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Carneiro, Andre R.
Subjects
dc:subject × 4Rights
- Language dc:language
- English
Identifiers
dc:identifier.*- DOI dc:identifier
- https://doi.org/10.7916/D8N29W9T
- OAI identifier oai:identifier
- oai:academiccommons.columbia.edu:10.7916/D8N29W9T