Advancements in Numerical Methods for Partial Differential Equations

The field of numerical methods for partial differential equations is witnessing significant developments, driven by the need for more accurate and efficient solutions to complex problems. Researchers are exploring innovative techniques to improve the accuracy and robustness of numerical methods, such as the use of machine learning algorithms, new finite element methods, and advanced discretization techniques. One notable trend is the increasing use of data-driven approaches to solve partial differential equations, which has led to the development of novel methods that can achieve high accuracy on coarse meshes. Another area of focus is the development of more efficient and stable numerical methods for solving time-dependent problems, including the use of tensor neural networks and subordination-based approximations. Noteworthy papers in this area include the work on entropy stable shock capturing for high-order DGSEM on moving meshes, which demonstrates the potential for improved accuracy and stability in simulations of complex flows. The paper on learning high-accuracy numerical schemes for hyperbolic equations on coarse meshes is also significant, as it shows how data-driven approaches can be used to develop more efficient and accurate numerical methods.

Sources

A posteriori error estimates for the finite element discretization of second-order PDEs set in unbounded domains

A numerical Bernstein splines approach for nonlinear initial value problems with Hilfer fractional derivative

Improvement of conformal maps combined with the Sinc approximation for derivatives over infinite intervals

Spectral coefficient learning physics informed neural network for time-dependent fractional parametric differential problems

Entropy stable shock capturing for high-order DGSEM on moving meshes

Stable fully discrete finite element methods with BGN tangential motion for Willmore flow of planar curves

Asymptotically accurate and locking-free finite element implementation of the refined shell theory

Convergence of Calder\'on residuals

A simple and general framework for the construction of exactly div-curl-grad compatible discontinuous Galerkin finite element schemes on unstructured simplex meshes

Learning high-accuracy numerical schemes for hyperbolic equations on coarse meshes

A posteriori error analysis of a robust virtual element method for stress-assisted diffusion problems

Subordination based approximation of Caputo fractional propagator and related numerical methods

A Fast Fourth-Order Cut Cell Method for Solving Elliptic Equations in Two-Dimensional Irregular Domains

A Conic Transformation Approach for Solving the Perspective-Three-Point Problem

Solving Time-Fractional Partial Integro-Differential Equations Using Tensor Neural Networks

Error analysis of the diffuse domain finite element method for second order parabolic equations

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