Numerical Methods for PDE Models and Inverse Problems

The field of numerical methods for partial differential equation (PDE) models and inverse problems is rapidly advancing, with a focus on developing efficient and accurate algorithms for solving complex problems. Recent research has emphasized the importance of understanding the behavior of numerical methods for non-local transport-dominated PDE models, which are used to describe various collective migration phenomena in cell biology and ecology. The development of new numerical schemes, such as semi-implicit and variational multiscale methods, has improved the accuracy and stability of simulations. Additionally, researchers have made significant progress in developing goal-oriented error estimation frameworks for finite element analysis of convection-diffusion-reaction equations. The application of these methods to real-world problems, such as beam hardening streaks in tomography and optimal insulation problems on non-smooth domains, has also been explored. Notable papers in this area include the development of a new semi-implicit scheme for stabilizing oscillations in non-local equations and a variational multiscale approach to goal-oriented error estimation. Furthermore, researchers have investigated the numerical reconstruction and analysis of backward semilinear subdiffusion problems and developed a mixed finite element method for a class of fourth-order stochastic evolution equations with multiplicative noise. Overall, the field is moving towards the development of more sophisticated and efficient numerical methods for solving complex PDE models and inverse problems. Noteworthy papers include: the development of a new semi-implicit scheme for non-local equations and a variational multiscale approach to goal-oriented error estimation.

Sources

Numerical Approaches for non-local Transport-Dominated PDE Models with Applications to Biology

Optimal error estimates of a second-order temporally finite element method for electrohydrodynamic equations

A posteriori error estimates for the finite element approximation of the convection-diffusion-reaction equation based on the variational multiscale concept

A variational multiscale approach to goal-oriented error estimation in finite element analysis of convection-diffusion-reaction equation problems

Analysis of beam hardening streaks in tomography

Numerical Reconstruction and Analysis of Backward Semilinear Subdiffusion Problems

On the Crouzeix-Raviart Finite Element Approximation of Phase-Field Dependent Topology Optimization in Stokes Flow

Duality-Based Algorithm and Numerical Analysis for Optimal Insulation Problems on Non-Smooth Domains

A mixed finite element method for a class of fourth-order stochastic evolution equations with multiplicative noise

Numerical analysis for subdiffusion problem with non-positive memory

Finite element approximation for quantitative photoacoustic tomography in a diffusive regime

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