16 citations · 51 across the 20 of their papers we have counts for
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A real convexity theorem for quasi-hamiltonian actions
Florent Schaffhauser
The main result of this paper is a quasi-hamiltonian analogue of a special case of the O'Shea-Sjamaar convexity theorem for usual momentum maps. We denote by U a simply connected c…
Decomposable representations and Lagrangian submanifolds of moduli spaces associated to surface groups
Florent Schaffhauser
In this paper, we construct a Lagrangian submanifold of the moduli space associated to the fundamental group of a punctured Riemann surface (the space of representations of this fu…
Quasi-Hamiltonian quotients as disjoint unions of symplectic manifolds
Florent Schaffhauser
We show that the quotient associated to a quasi-Hamiltonian space has a symplectic structure even when 1 is not a regular value of the momentum map: it is a disjoint union of sympl…
Representations of the fundamental group of an L-punctured sphere generated by products of Lagrangian involutions
Florent Schaffhauser
In this paper, we characterize unitary representations of the fundamental group of a punctured sphere whose generators can be decomposed into products of two Lagrangian involutions…