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arXiv · 1308.6788

Donagi-Markman cubic for the generalised Hitchin system

Ugo Bruzzo·Peter Dalakov
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Abstract

Donagi and Markman (1993) have shown that the infinitesimal period map for an algebraic completely integrable Hamiltonian system is encoded in a section of the third symmetric power of the cotangent bundle to the base of the system. For the ordinary Hitchin system the cubic is given by a formula of Balduzzi and Pantev. We prove that the Balduzzi--Pantev formula holds along maximal rank symplectic leaves of the G-generalised Hitchin system.

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Ugo Bruzzo, Peter Dalakov. 2014-04-12. Donagi-Markman cubic for the generalised Hitchin system. https://doi.org/10.1142/s0129167x14500165

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