Armero, F. On the modeling of restrained torsional warping: an analysis of two formulations. (English) Zbl 1492.74095 Z. Angew. Math. Phys. 73, No. 2, Paper No. 56, 30 p. (2022). MSC: 74K10 74A05 74B05 74-10 PDFBibTeX XMLCite \textit{F. Armero}, Z. Angew. Math. Phys. 73, No. 2, Paper No. 56, 30 p. (2022; Zbl 1492.74095) Full Text: DOI
Plum, Michael Bounds for eigenvalues of second-order elliptic differential operators. (English) Zbl 0749.35028 Z. Angew. Math. Phys. 42, No. 6, 848-863 (1991). Reviewer: A.Müller-Rettkowski (Karlsruhe) MSC: 35P15 35J25 35A15 65N30 PDFBibTeX XMLCite \textit{M. Plum}, Z. Angew. Math. Phys. 42, No. 6, 848--863 (1991; Zbl 0749.35028) Full Text: DOI
Plum, Michael Eigenvalue inclusions for second-order ordinary differential operators by a numerical homotopy method. (English) Zbl 0707.65060 Z. Angew. Math. Phys. 41, No. 2, 205-226 (1990). Reviewer: A.L.Andrew MSC: 65L15 65G30 34L15 65H20 PDFBibTeX XMLCite \textit{M. Plum}, Z. Angew. Math. Phys. 41, No. 2, 205--226 (1990; Zbl 0707.65060) Full Text: DOI
Fox, D. W.; Kuttler, J. R. Sloshing frequencies. (English) Zbl 0539.76022 Z. Angew. Math. Phys. 34, 668-696 (1983). Reviewer: D.Bryant MSC: 76B15 35P05 PDFBibTeX XMLCite \textit{D. W. Fox} and \textit{J. R. Kuttler}, Z. Angew. Math. Phys. 34, 668--696 (1983; Zbl 0539.76022) Full Text: DOI
Fox, David W.; Kuttler, James R. Upper and lower bounds for sloshing frequencies by intermediate problems. (English) Zbl 0502.76024 Z. Angew. Math. Phys. 32, 667-682 (1981). MSC: 76B15 76B99 PDFBibTeX XMLCite \textit{D. W. Fox} and \textit{J. R. Kuttler}, Z. Angew. Math. Phys. 32, 667--682 (1981; Zbl 0502.76024) Full Text: DOI
Bickford, William B. Lower bounds to eigenvalues of piecewise continuous elastic systems. (English) Zbl 0399.73048 Z. angew. Math. Phys. 30, 65-75 (1979). MSC: 74H55 74E05 70J10 35P15 PDFBibTeX XMLCite \textit{W. B. Bickford}, Z. Angew. Math. Phys. 30, 65--75 (1979; Zbl 0399.73048) Full Text: DOI
Philippin, Gerard A. Some isoperimetric norm bounds for the first eigenfunction of wedge-like membranes. (English) Zbl 0354.35035 Z. angew. Math. Phys. 27, 545-551 (1976). MSC: 35J25 35P05 35P15 PDFBibTeX XMLCite \textit{G. A. Philippin}, Z. Angew. Math. Phys. 27, 545--551 (1976; Zbl 0354.35035) Full Text: DOI
Seydel, Rüdiger Bounds for the lowest critical value of the nonlinear operator \(- u''+u^3\). (English) Zbl 0353.65058 Z. angew. Math. Phys. 26, 713-720 (1975). MSC: 65L15 PDFBibTeX XMLCite \textit{R. Seydel}, Z. Angew. Math. Phys. 26, 713--720 (1975; Zbl 0353.65058) Full Text: DOI
Cole, Julian D. Note on the fundamental solution of \(wy_{vv}+y_{ww}=0\). (English) Zbl 0047.34501 Z. Angew. Math. Phys. 3, 286-297 (1952). PDFBibTeX XMLCite \textit{J. D. Cole}, Z. Angew. Math. Phys. 3, 286--297 (1952; Zbl 0047.34501) Full Text: DOI