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    On convergence rate of finite element eigenvalue analysis with mass lum** by nodal quadrature

    Error bounds are obtained for the finite element eigenvalue analysis using the diagonal mass matrix lumped by nodal quadrature. Finite element results of various two-dimensional 2nd order eigenvalue problems a...

    Y. -N. Li, R. Y. Liang, D. -J. Wang in Computational Mechanics (1991)