Publication

From Compact Semi-Toric Systems To Hamiltonian S-1-Spaces

Silvia Sabatini
2015
Journal Articles

Abstract

We show how any labeled convex polygon associated to a compact semi-toric system, as de fined by V (u) over tilde Ngoc, determines Karshon's labeled directed graph which classifies the underlying Hamiltonian S-1-space up to isomorphism. Then we characterize adaptable compact semi-toric systems, i.e. those whose underlying Hamiltonian S-1-action can be extended to an effective Hamiltonian T-2-action, as those which have at least one associated convex polygon which satisfies the Delzant condition.

Official source

https://infoscience.epfl.ch/entities/publication/d7aa922c-4992-4248-911f-a79ededeea81

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From Compact Semi-Toric Systems To Hamiltonian S-1-Spaces

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