Beattie, Christopher; Goerisch, Friedrich Methods for computing lower bounds to eigenvalues of self-adjoint operators. (English) Zbl 0857.65063 Numer. Math. 72, No. 2, 143-172 (1995). Reviewer: A.J.Meir (Auburn) MSC: 65J10 35P15 47A75 47B25 PDFBibTeX XMLCite \textit{C. Beattie} and \textit{F. Goerisch}, Numer. Math. 72, No. 2, 143--172 (1995; Zbl 0857.65063) Full Text: DOI
Beattie, C. Lower bounds for the resonant frequencies of nonuniform frame structures. (English) Zbl 0626.73057 Z. Angew. Math. Mech. 67, 545-556 (1987). MSC: 74H45 49R50 47A70 74K10 47B38 PDFBibTeX XMLCite \textit{C. Beattie}, Z. Angew. Math. Mech. 67, 545--556 (1987; Zbl 0626.73057) Full Text: DOI