Hamilton–Pontryagin integrators on Lie groups part I: Introduction and structure-preserving properties

N Bou-Rabee, JE Marsden - Foundations of computational mathematics, 2009 - Springer
In this paper, structure-preserving time-integrators for rigid body-type mechanical systems
are derived from a discrete Hamilton–Pontryagin variational principle. From this principle …

Stochastic variational integrators

N Bou-Rabee, H Owhadi - IMA Journal of Numerical Analysis, 2009 - ieeexplore.ieee.org
This paper presents a continuous and discrete Lagrangian theory for stochastic Hamiltonian
systems on manifolds, akin to the Ornstein–Uhlenbeck theory of Brownian motion in a force …

Geometric methods and formulations in computational multibody system dynamics

A Müller, Z Terze - Acta mechanica, 2016 - Springer
Multibody systems are dynamical systems characterized by intrinsic symmetries and
invariants. Geometric mechanics deals with the mathematical modeling of such systems and …

Intrinsic polynomials for regression on Riemannian manifolds

J Hinkle, PT Fletcher, S Joshi - Journal of Mathematical Imaging and …, 2014 - Springer
We develop a framework for polynomial regression on Riemannian manifolds. Unlike
recently developed spline models on Riemannian manifolds, Riemannian polynomials offer …

Geometric, variational discretization of continuum theories

ES Gawlik, P Mullen, D Pavlov, JE Marsden… - Physica D: Nonlinear …, 2011 - Elsevier
This study derives geometric, variational discretization of continuum theories arising in fluid
dynamics, magnetohydrodynamics (MHD), and the dynamics of complex fluids. A central …

Casimir preserving stochastic Lie–Poisson integrators

E Luesink, S Ephrati, P Cifani, B Geurts - Advances in Continuous and …, 2024 - Springer
Casimir preserving integrators for stochastic Lie–Poisson equations with Stratonovich noise
are developed, extending Runge–Kutta Munthe-Kaas methods. The underlying Lie–Poisson …

Underwater rigid body dynamics

S Weißmann, U Pinkall - ACM Transactions on Graphics (TOG), 2012 - dl.acm.org
We show that the motion of rigid bodies under water can be realistically simulated by
replacing the usual inertia tensor and scalar mass by the so-called Kirchhoff tensor. This …

Variational integrators for electric circuits

S Ober-Blöbaum, M Tao, M Cheng, H Owhadi… - Journal of …, 2013 - Elsevier
In this contribution, we develop a variational integrator for the simulation of (stochastic and
multiscale) electric circuits. When considering the dynamics of an electric circuit, one is …

Dissipation-induced heteroclinic orbits in tippe tops

NM Bou-Rabee, JE Marsden, LA Romero - SIAM review, 2008 - SIAM
This paper demonstrates that the conditions for the existence of a dissipation-induced
heteroclinic orbit between the inverted and noninverted states of a tippe top are determined …

Optimal control problems with symmetry breaking cost functions

AM Bloch, LJ Colombo, R Gupta, T Ohsawa - SIAM Journal on Applied …, 2017 - SIAM
We investigate symmetry reduction of optimal control problems for left-invariant control affine
systems on Lie groups, with partial symmetry breaking cost functions. Our approach …