Symplectic groupoid multiplication and Poisson integrators
Alejandro Cabrera, David Iglesias Ponte, Juan Carlos Marrero
Abstract
In this paper, we study the role of local symplectic groupoid multiplication in the construction of approximation methods for Hamiltonian flows on the underlying Poisson manifold. We show it can be used to construct a novel multiplicative type of approximating sequences for the relevant Lagrangian bisection. We describe the corresponding theoretical results, their practical implementation into approximation methods on coordinate charts via generating functions, and illustrative examples.
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