Poisson-Nijenhuis groupoids
arXiv:1709.08168 · doi:10.1016/S0034-4877(19)30095-3
Abstract
We define multiplicative Poisson-Nijenhuis structures on a Lie groupoid which extends the notion of symplectic-Nijenhuis groupoid introduced by Stié23non and Xu. We also introduce a special class of Lie bialgebroid structure on a Lie algebroid , called P-N Lie bialgebroid, which defines a hierarchy of compatible Lie bialgebroid structures on . We show that under some topological assumption on the groupoid, there is a one-to-one correspondence between multiplicative Poisson-Nijenhuis structures on a Lie groupoid and P-N Lie bialgebroid structures on the corresponding Lie algebroid.
23 pages