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Chen, Daguang; Zheng, Tao; Lu, Min Eigenvalue estimates on domains in complete noncompact Riemannian manifolds. (English) Zbl 1236.35097 Pac. J. Math. 255, No. 1, 41-54 (2012). MSC: 35P15 35J05 58J50 74K20 PDFBibTeX XMLCite \textit{D. Chen} et al., Pac. J. Math. 255, No. 1, 41--54 (2012; Zbl 1236.35097) Full Text: DOI Link