We prove a generalization of Kawai theorem for the case of orbifold Riemann surface. The computation is based on a formula for the differential of a holomorphic map from the… Click to show full abstract
We prove a generalization of Kawai theorem for the case of orbifold Riemann surface. The computation is based on a formula for the differential of a holomorphic map from the cotangent bundle of the Teichmüller space to the $${\mathrm {PSL}}(2,\mathbb {C})$$PSL(2,C)-character variety, which allows to evaluate explicitly the pullback of Goldman symplectic form in the spirit of Riemann bilinear relations. As a corollary, we obtain a generalization of Goldman’s theorem that the pullback of Goldman symplectic form on the $${\mathrm {PSL}}(2,\mathbb {R})$$PSL(2,R)-character variety is a symplectic form of the Weil–Petersson metric on the Teichmüller space.
               
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