Liu X. Guaranteed Computational Methods for Self-Adjoint Diff Eigenvalue...2024
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Liu X. Guaranteed Computational Methods for Self-Adjoint Diff Eigenvalue...2024
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Textbook in PDF format
This monograph presents a study of newly developed guaranteed computational methodologies for eigenvalue problems of self-adjoint differential operators. It focuses on deriving explicit lower and upper bounds for eigenvalues, as well as explicit estimations for eigenfunction approximations. Such explicit error estimations rely on the finite element method (FEM) along with a new theory of explicit quantitative error estimation, diverging from traditional studies that primarily focus on qualitative results