Advances in Numerical Methods for Partial Differential Equations

The field of numerical methods for partial differential equations is rapidly evolving, with a focus on developing innovative and efficient algorithms for solving complex problems. Recent developments have seen a shift towards the use of adaptive and asymptotic-preserving schemes, which are capable of capturing complex phenomena and behavior in various fields, including fluid dynamics, biology, and materials science. Notably, researchers have made significant progress in the development of new finite difference methods, such as the zigzag schemes, which offer improved stability and accuracy. Additionally, there have been advances in the development of optimized Schwarz methods for heterogeneous heat transfer problems and novel direct algorithms for reconstructing small conductivity inclusions in subdiffusion models. These developments have the potential to greatly impact various fields, including engineering, physics, and biology, by enabling more accurate and efficient simulations of complex systems. Noteworthy papers include: The paper on An Adaptive-rank Approach with Greedy Sampling for Multi-scale BGK Equations, which proposes a novel adaptive-rank method for simulating multi-scale BGK equations. The paper on A new class of finite difference methods: The zigzag schemes, which introduces a novel class of finite difference approximations that offer improved stability and accuracy. The paper on Direct Algorithms for Reconstructing Small Conductivity Inclusions in Subdiffusion, which develops novel direct algorithms for reconstructing small conductivity inclusions in subdiffusion models.

Sources

Equilibrium-distribution-function based mesoscopic finite-difference methods for partial differential equations: Modeling and Analysis

An Adaptive-rank Approach with Greedy Sampling for Multi-scale BGK Equations

The GMRES method for solving the large indefinite least squares problem via an accelerated preconditioner

Equilibrium boundary conditions for vectorial multi-dimensional lattice Boltzmann schemes

An insight on some properties of high order nonstandard linear multistep methods

Stage-Parallel Implicit Runge--Kutta methods via low-rank matrix equation corrections

A new class of finite difference methods: The zigzag schemes

Structured Divide-and-Conquer for the Definite Generalized Eigenvalue Problem

A High Accuracy Symplectic Scheme for Advection Diffusion Reaction Models in Bioseparation

Local cubic spline interpolation for Vlasov-type equations on a multi-patch geometry

Optimized Schwarz methods for heterogeneous heat transfer problems

Direct Algorithms for Reconstructing Small Conductivity Inclusions in Subdiffusion

Lanczos with compression for symmetric matrix Lyapunov equations

Gautschi-type and implicit-explicit integrators for constrained wave equations

Asymptotic-preserving schemes for the initial-boundary value problem of hyperbolic relaxation systems

A posteriori error estimates and adaptivity for locally conservative methods. Inexpensive implementation and evaluation, polytopal meshes, iterative linearization and algebraic solvers, and applications to complex porous media flows

$S^{\top\!}S$-SVD and the Nearest Sketched Orthogonal Matrix

Built with on top of