Hydrodynamical constraints on the bubble wall velocity
Terminal velocity reached by bubble walls in first-order phase transitions is an important
parameter determining both primordial gravitational wave spectrum and the production of …
parameter determining both primordial gravitational wave spectrum and the production of …
Construction and analysis of higher order Galerkin variational integrators
S Ober-Blöbaum, N Saake - Advances in Computational Mathematics, 2015 - Springer
In this work we derive and analyze variational integrators of higher order for the structure-
preserving simulation of mechanical systems. The construction is based on a space of …
preserving simulation of mechanical systems. The construction is based on a space of …
[HTML][HTML] Stochastic discrete Hamiltonian variational integrators
DD Holm, TM Tyranowski - BIT Numerical Mathematics, 2018 - Springer
Variational integrators are derived for structure-preserving simulation of stochastic
Hamiltonian systems with a certain type of multiplicative noise arising in geometric …
Hamiltonian systems with a certain type of multiplicative noise arising in geometric …
[图书][B] Symplectic integration of stochastic hamiltonian systems
J Hong, L Sun - 2022 - Springer
As numerous modern challenges in scientific questions, industrial needs, and societal
requirements emerge, the demand for designing numerical methods to solve tremendously …
requirements emerge, the demand for designing numerical methods to solve tremendously …
Construction and analysis of higher order variational integrators for dynamical systems with holonomic constraints
T Wenger, S Ober-Blöbaum, S Leyendecker - Advances in Computational …, 2017 - Springer
In this work, variational integrators of higher order for dynamical systems with holonomic
constraints are constructed and analyzed. The construction is based on approximating the …
constraints are constructed and analyzed. The construction is based on approximating the …
Variational integrators for stochastic dissipative Hamiltonian systems
M Kraus, TM Tyranowski - IMA Journal of Numerical Analysis, 2021 - academic.oup.com
Variational integrators are derived for structure-preserving simulation of stochastic forced
Hamiltonian systems. The derivation is based on a stochastic discrete Hamiltonian, which …
Hamiltonian systems. The derivation is based on a stochastic discrete Hamiltonian, which …
Learning ODE models with qualitative structure using Gaussian processes
S Ridderbusch, C Offen… - 2021 60th IEEE …, 2021 - ieeexplore.ieee.org
Recently there has been increasing interest in the use of learning techniques to model
dynamical systems directly from data for scientific and engineering applications. However, in …
dynamical systems directly from data for scientific and engineering applications. However, in …
Stochastic variational principles for the collisional Vlasov–Maxwell and Vlasov–Poisson equations
TM Tyranowski - Proceedings of the Royal Society A, 2021 - royalsocietypublishing.org
In this work, we recast the collisional Vlasov–Maxwell and Vlasov–Poisson equations as
systems of coupled stochastic and partial differential equations, and we derive stochastic …
systems of coupled stochastic and partial differential equations, and we derive stochastic …
High order variational integrators in the optimal control of mechanical systems
CM Campos, S Ober-Blöbaum, E Trélat - arXiv preprint arXiv:1502.00325, 2015 - arxiv.org
In recent years, much effort in designing numerical methods for the simulation and
optimization of mechanical systems has been put into schemes which are structure …
optimization of mechanical systems has been put into schemes which are structure …
Multisymplectic Hamiltonian variational integrators
Variational integrators have traditionally been constructed from the perspective of
Lagrangian mechanics, but there have been recent efforts to adopt discrete variational …
Lagrangian mechanics, but there have been recent efforts to adopt discrete variational …