In this research announcement we associate to each convex polytope, possibly nonrational and nonsimple, a family of compact spaces that are stratified by quasifolds, i.e., the strata are locally modeled by R^k modulo the action of a discrete, possibly infinite, group. Each stratified space is endowed with a symplectic structure and a moment mapping having the property that its image gives the original polytope back. These spaces may be viewed as a natural generalization of symplectic toric varieties to the nonrational setting. We provide here the explicit construction of these spaces, and a thorough description of the stratification.
Nonrational, nonsimple convex polytopes in symplectic geometry / F. Battaglia; E. Prato. - In: ELECTRONIC RESEARCH ANNOUNCEMENTS OF THE AMERICAN MATHEMATICAL SOCIETY. - ISSN 1079-6762. - ELETTRONICO. - 8:(2002), pp. 29-34. [10.1090/S1079-6762-02-00101-4]
Nonrational, nonsimple convex polytopes in symplectic geometry
BATTAGLIA, FIAMMETTA;PRATO, ELISA
2002
Abstract
In this research announcement we associate to each convex polytope, possibly nonrational and nonsimple, a family of compact spaces that are stratified by quasifolds, i.e., the strata are locally modeled by R^k modulo the action of a discrete, possibly infinite, group. Each stratified space is endowed with a symplectic structure and a moment mapping having the property that its image gives the original polytope back. These spaces may be viewed as a natural generalization of symplectic toric varieties to the nonrational setting. We provide here the explicit construction of these spaces, and a thorough description of the stratification.File | Dimensione | Formato | |
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