Advancements in Numerical Methods for Complex Problems

The field of numerical methods is witnessing significant advancements in tackling complex problems. Researchers are developing innovative techniques to improve the efficiency and accuracy of simulations, particularly in areas such as eigenvalue problems, parametric models, and contact mechanics. A notable trend is the integration of experimental data and computational methods to enhance the fidelity of simulations. Additionally, there is a growing focus on developing certified model order reduction methods for large-scale parametric problems. Noteworthy papers include:

  • A Hidden Variable Resultant Method for the Polynomial Multiparameter Eigenvalue Problem, which presents a novel global algorithm for solving polynomial multiparameter eigenvalue problems.
  • Adaptive hyper-reduction of non-sparse operators, which proposes an adaptive structure-preserving hyper-reduction method for parametric particle-based kinetic plasma models.
  • Certified Model Order Reduction for parametric Hermitian eigenproblems, which introduces a novel error estimate for the approximation error related to the eigenspace associated with the smallest eigenvalue. These advancements have the potential to significantly impact various fields, including physics, engineering, and materials science.

Sources

Connecting Kaporin's condition number and the Bregman log determinant divergence

A Hidden Variable Resultant Method for the Polynomial Multiparameter Eigenvalue Problem

Least squares spectral element formulation of eigenvalue problems with/without interface : the one dimensional example

Adaptive hyper-reduction of non-sparse operators: application to parametric particle-based kinetic plasma models

Distributed preconditioning for the parametric Helmholtz equation

On the block Eberlein diagonalization method

A computational framework for evaluating tire-asphalt hysteretic friction including pavement roughness

A balancing domain decomposition by constraints preconditioner for a hybridizable discontinuous Galerkin discretization of an elliptic optimal control problem

Solving adhesive rough contact problems with Atomic Force Microscope data

Certified Model Order Reduction for parametric Hermitian eigenproblems

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