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 …
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 …
systems on manifolds, akin to the Ornstein–Uhlenbeck theory of Brownian motion in a force …
Geometric methods and formulations in computational multibody system dynamics
Multibody systems are dynamical systems characterized by intrinsic symmetries and
invariants. Geometric mechanics deals with the mathematical modeling of such systems and …
invariants. Geometric mechanics deals with the mathematical modeling of such systems and …
Intrinsic polynomials for regression on Riemannian manifolds
We develop a framework for polynomial regression on Riemannian manifolds. Unlike
recently developed spline models on Riemannian manifolds, Riemannian polynomials offer …
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 …
dynamics, magnetohydrodynamics (MHD), and the dynamics of complex fluids. A central …
Casimir preserving stochastic Lie–Poisson integrators
Casimir preserving integrators for stochastic Lie–Poisson equations with Stratonovich noise
are developed, extending Runge–Kutta Munthe-Kaas methods. The underlying Lie–Poisson …
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 …
replacing the usual inertia tensor and scalar mass by the so-called Kirchhoff tensor. This …
Variational integrators for electric circuits
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 …
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 …
heteroclinic orbit between the inverted and noninverted states of a tippe top are determined …
Optimal control problems with symmetry breaking cost functions
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 …
systems on Lie groups, with partial symmetry breaking cost functions. Our approach …