PreprintCC BY 4.0HAL
Butcher series for Hamiltonian Poisson integrators through symplectic groupoids
Abstract
We exhibit a new pre-Lie algebra in the framework of symplectic groupoids and, in turn, use Butcher trees to compute the Taylor series of a solution of a Hamilton-Jacobi equation on any symplectic groupoid π’ rightrightarrows M. The impact of this new algebraic approach is twofold. On the geometric side, it yields algebraic operations to approximate Lagrangian bisections of π’ using the Butcher-Connes-Kreimer Hopf algebra and, in turn, aims at a better understanding of the group of Hamiltonian diffeomorphisms of M. On the computational side, we define a new class of Poisson integrators for Hamiltonian dynamics on Poisson manifolds.
Related
- Symplectic groupoid multiplication and Poisson integrators
- The shifted symplectic geometry of derived higher groupoids
- Moment Lagrangians, unobstructedness and symplectic groupoids
- Dynamics of Stochastic Hamiltonian systems I - Wong-Zakai Variational integrators
- The symplectic leaves of the affine Poisson Cβ-scheme associated with a singular subalgebroid
BibTeX
@misc{laurent2026butcher,
title = {{Butcher series for Hamiltonian Poisson integrators through symplectic groupoids}},
author = {Adrien Busnot Laurent and Oscar Cosserat},
howpublished = {HAL},
year = {2026},
month = oct,
url = {https://hal.science/hal-05368917v2},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Butcher series for Hamiltonian Poisson integrators through symplectic groupoids
AU - Adrien Busnot Laurent
AU - Oscar Cosserat
PY - 2026
DA - 2026/10/09
PB - HAL
UR - https://hal.science/hal-05368917v2
AB - We exhibit a new pre-Lie algebra in the framework of symplectic groupoids and, in turn, use Butcher trees to compute the Taylor series of a solution of a Hamilton-Jacobi equation on any symplectic groupoid π’ rightrightarrows M. The impact of this new algebraic approach is twofold. On the geometric side, it yields algebraic operations to approximate Lagrangian bisections of π’ using the Butcher-Connes-Kreimer Hopf algebra and, in turn, aims at a better understanding of the group of Hamiltonian diffeomorphisms of M. On the computational side, we define a new class of Poisson integrators for Hamiltonian dynamics on Poisson manifolds.
ER -