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Finite element-Galerkin approximation of the eigenvalues and eigenvectors of selfadjoint problems
Mathematics of Computation
Refined estimates for finite element or, more generally, Galerkin approximations of the eigenvalues and eigenvectors of selfadjoint eigenvalue problems are presented. More specifically, refined results on the asymptotic behavior of the eigenvalue and eigenvector errors are proved. Both simple and multiple eigenvalues are treated. X€Shdoi:10.1090/s0025-5718-1989-0962210-8 fatcat:b263os5x2zh3vpazuk3iyvi2re