Relaxation exponential Rosenbrock-type methods for oscillatory Hamiltonian systems
D Li, X Li - SIAM Journal on Scientific Computing, 2023 - SIAM
It is challenging to numerically solve oscillatory Hamiltonian systems due to the stiffness of
the problems and the requirement of highly stable and energy-preserving schemes. The …
the problems and the requirement of highly stable and energy-preserving schemes. The …
Implicit-explicit relaxation Runge-Kutta methods: construction, analysis and applications to PDEs
Spatial discretizations of time-dependent partial differential equations usually result in a
large system of semi-linear and stiff ordinary differential equations. Taking the structures into …
large system of semi-linear and stiff ordinary differential equations. Taking the structures into …
High order entropy preserving ADER-DG schemes
In this paper, we develop a fully discrete entropy preserving ADER-Discontinuous Galerkin
(ADER-DG) method. To obtain this desired result, we equip the space part of the method …
(ADER-DG) method. To obtain this desired result, we equip the space part of the method …
Linearly implicit and high-order energy-preserving relaxation schemes for highly oscillatory Hamiltonian systems
In this paper, a family of novel energy-preserving schemes are presented for numerically
solving highly oscillatory Hamiltonian systems. These schemes are constructed by using the …
solving highly oscillatory Hamiltonian systems. These schemes are constructed by using the …
Reinterpretation and extension of entropy correction terms for residual distribution and discontinuous Galerkin schemes: application to structure preserving …
For the general class of residual distribution (RD) schemes, including many finite element
(such as continuous/discontinuous Galerkin) and flux reconstruction methods, an approach …
(such as continuous/discontinuous Galerkin) and flux reconstruction methods, an approach …
Optimized Runge-Kutta methods with automatic step size control for compressible computational fluid dynamics
We develop error-control based time integration algorithms for compressible fluid dynamics
(CFD) applications and show that they are efficient and robust in both the accuracy-limited …
(CFD) applications and show that they are efficient and robust in both the accuracy-limited …
PottsMGNet: A mathematical explanation of encoder-decoder based neural networks
For problems in image processing and many other fields, a large class of effective neural
networks has encoder-decoder-based architectures. Although these networks have shown …
networks has encoder-decoder-based architectures. Although these networks have shown …
Relaxation deferred correction methods and their applications to residual distribution schemes
The Deferred Correction (DeC) methods combined with the residual distribution (RD)
approach allow the construction of high order continuous Galerkin (cG) schemes avoiding …
approach allow the construction of high order continuous Galerkin (cG) schemes avoiding …
[HTML][HTML] Fully discrete explicit locally entropy-stable schemes for the compressible Euler and Navier–Stokes equations
Recently, relaxation methods have been developed to guarantee the preservation of a
single global functional of the solution of an ordinary differential equation. Here, we …
single global functional of the solution of an ordinary differential equation. Here, we …
A broad class of conservative numerical methods for dispersive wave equations
We develop a general framework for designing conservative numerical methods based on
summation by parts operators and split forms in space, combined with relaxation Runge …
summation by parts operators and split forms in space, combined with relaxation Runge …