P. Xu

activity

19972005

most citedUniversal lifting theorem and quasi-Poisson groupoids

11 citations · 25 across the 9 of their papers we have counts for

collaborators

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2 papers · 1 filter

math.SG2003

Momentum Maps and Morita Equivalence

Ping Xu

We introduce quasi-symplectic groupoids and explain their relation with momentum map theories. This approach enables us to unify into a single framework various momentum map theori…

math.SG2003

Equivariant gerbes over compact simple Lie groups

Kai Behrend, Ping Xu, Bin Zhang

Using groupoid $S^{1}$ -central extensions, we present, for a compact simple Lie group $G$ , an infinite dimensional model of $S^{1}$ -gerbe over the differential stack $G / G$ whose Dixmie…