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The design of numerical integrators for solving stochastic dynamics with high weak order relies on tedious calculations and is subject to a high number of order conditions. The original approaches from the literature consider strong…

数值分析 · 数学 2026-03-26 Adrien Busnot Laurent , Kristian Debrabant , Anne Kværnø

Strong stability preserving (SSP) Runge-Kutta methods are often desired when evolving in time problems that have two components that have very different time scales. Where the SSP property is needed, it has been shown that implicit and…

数值分析 · 数学 2018-08-15 Sigal Gottlieb , Zachary J. Grant , Leah Isherwood

We extend the fourth order, two stage Multi-Derivative Runge Kutta (MDRK) scheme to the Flux Reconstruction (FR) framework by writing both stages in terms of a time averaged flux and then using the approximate Lax-Wendroff procedure to…

数值分析 · 数学 2024-10-14 Arpit Babbar , Praveen Chandrashekar

This paper investigates the performance of a subclass of exponential integrators, specifically explicit exponential Runge--Kutta methods. It is well known that third-order methods can suffer from order reduction when applied to linearized…

数值分析 · 数学 2024-12-30 Thi Tam Dang , Trung Hau Hoang

Many important differential equations model quantities whose value must remain positive or stay in some bounded interval. These bounds may not be preserved when the model is solved numerically. We propose to ensure positivity or other…

数值分析 · 数学 2021-11-10 Stephan Nüßlein , Hendrik Ranocha , David I Ketcheson

Using a recent characterization of energy-preserving B-series, we derive the explicit conditions on the coefficients of a Runge-Kutta method that ensure energy preservation (for Hamiltonian systems) up to a given order in the step size,…

数值分析 · 数学 2025-01-24 Gabriel A. Barrios de León , David I. Ketcheson , Hendrik Ranocha

We propose a new probabilistic scheme which combines deep learning techniques with high order schemes for backward stochastic differential equations belonging to the class of Runge-Kutta methods to solve high-dimensional semi-linear…

数值分析 · 数学 2023-01-02 Jean-François Chassagneux , Junchao Chen , Noufel Frikha

Implicit Runge--Kutta (IRK) methods are highly effective for solving stiff ordinary differential equations (ODEs) but can be computationally expensive for large-scale problems due to the need of solving coupled algebraic equations at each…

数值分析 · 数学 2025-09-18 Fabio Durastante , Mariarosa Mazza

Segregated Runge-Kutta (SRK) schemes are time integration methods for the incompressible Navier-Stokes equations. In this approach, convection and diffusion can be independently treated either explicitly or implicitly, which in particular…

数值分析 · 数学 2025-06-12 Pavel Bakhvalov

There exist many Runge-Kutta methods (explicit or implicit), more or less adapted to specific problems. Some of them have interesting properties, such as stability for stiff problems or symplectic capability for problems with energy…

数值分析 · 数学 2018-04-16 Julien Alexandre dit Sandretto

In this technical note a general procedure is described to construct internally consistent splitting methods for the numerical solution of differential equations, starting from matching pairs of explicit and diagonally implicit Runge-Kutta…

数值分析 · 数学 2017-07-17 Willem Hundsdorfer

The Deferred Correction (DeC) is an iterative procedure, characterized by increasing accuracy at each iteration, which can be used to design numerical methods for systems of ODEs. The main advantage of such framework is the automatic way of…

数值分析 · 数学 2023-11-09 Lorenzo Micalizzi , Davide Torlo

This work constructs and analyzes new efficient high-order two-derivative diagonally implicit Runge--Kutta (TDDIRK) schemes with optimized phase errors. Specifically, we present a convergence result for TDDIRK methods and investigate their…

数值分析 · 数学 2025-12-18 Julius Ehigie , Vu Thai Luan

We develop two new sets of stable, rank-adaptive Dynamically Orthogonal Runge-Kutta (DORK) schemes that capture the high-order curvature of the nonlinear low-rank manifold. The DORK schemes asymptotically approximate the truncated singular…

数值分析 · 数学 2023-08-08 Aaron Charous , Pierre F. J. Lermusiaux

Finite element discretization of time dependent problems also require effective time-stepping schemes. While implicit Runge-Kutta methods provide favorable accuracy and stability problems, they give rise to large and complicated systems of…

数值分析 · 数学 2023-05-01 Robert C. Kirby

Convenient, easy to implement stochastic integration methods are developed on the basis of abstract one-step deterministic order $p$ integration techniques. The abstraction as an arbitrary one step map allows the inspection of easy to…

数值分析 · 数学 2025-10-15 J. Woodfield , A. Lobbe

In current research, we analyse dissipation and dispersion characteristics of most accurate two and three stage Gauss-Legendre implicit Runge-Kutta (R-K) methods. These methods, known for their $A$-stability and immense accuracy, are…

数值分析 · 数学 2019-06-25 Subhajit Giri , Shuvam Sen

Stabilized Runge-Kutta methods are especially efficient for the numerical solution of large systems of stiff nonlinear differential equations because they are fully explicit. For semi-discrete parabolic problems, for instance, stabilized…

数值分析 · 数学 2022-04-05 Assyr Abdulle , Marcus J. Grote , Giacomo Rosilho de Souza

The Butcher theory provides a powerful tool for analyzing order conditions of Runge-Kutta schemes for ordinary differential equations (ODEs); however, such a theory has not yet been well established for backward stochastic differential…

数值分析 · 数学 2026-05-26 Shuixin Fang , Yue Qiu , Weidong Zhao

In this paper, we study the uniform accuracy of implicit-explicit (IMEX) Runge-Kutta (RK) schemes for general linear hyperbolic relaxation systems satisfying the structural stability condition proposed in \cite{yong_singular_1999}. We…

数值分析 · 数学 2025-06-27 Zhiting Ma , Juntao Huang