Unitary representations of the Virasoro algebra and a conjecture of Kac
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Vyjayanthi Chari, Andrew Pressley (1988)
Compositio Mathematica
David Inglesias-Ponte, Camille Laurent-Gengoux, Ping Xu (2012)
Journal of the European Mathematical Society
We prove the universal lifting theorem: for an -simply connected and -connected Lie groupoid with Lie algebroid , the graded Lie algebra of multi-differentials on is isomorphic to that of multiplicative multi-vector fields on . As a consequence, we obtain the integration theorem for a quasi-Lie bialgebroid, which generalizes various integration theorems in the literature in special cases. The second goal of the paper is the study of basic properties of quasi-Poisson groupoids. In particular,...
Gopal Prasad, Allen Moy (1994)
Inventiones mathematicae
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