Tlusty, Tsvi A relation between the multiplicity of the second eigenvalue of a graph Laplacian, Courant’s nodal line theorem and the substantial dimension of tight polyhedral surfaces. (English) Zbl 1213.05174 Electron. J. Linear Algebra 16, 315-324 (2007). MSC: 05C50 15A18 47A75 81R05 PDFBibTeX XMLCite \textit{T. Tlusty}, Electron. J. Linear Algebra 16, 315--324 (2007; Zbl 1213.05174) Full Text: DOI arXiv EuDML
Ding, Hua Very weak solutions of boundary value problems for the Laplace operator and the Lamé system on polyhedral domains in \(\mathbb{R}^ 3\). (English) Zbl 0804.47051 Proc. R. Soc. Edinb., Sect. A 124, No. 4, 645-672 (1994). MSC: 47F05 35J25 35J20 PDFBibTeX XMLCite \textit{H. Ding}, Proc. R. Soc. Edinb., Sect. A, Math. 124, No. 4, 645--672 (1994; Zbl 0804.47051) Full Text: DOI