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Vugal’ter, S. A.; Zhislin, G. M. On the finiteness of discrete spectrum in the n-particle problem. (English) Zbl 0581.46063 Rep. Math. Phys. 19, 39-90 (1984). Reviewer: P.Hillion MSC: 46N99 47A70 47A40 81U10 PDF BibTeX XML Cite \textit{S. A. Vugal'ter} and \textit{G. M. Zhislin}, Rep. Math. Phys. 19, 39--90 (1984; Zbl 0581.46063) Full Text: DOI OpenURL
Kozhukhar’, P. A.; Fel’dman, I. A. On conditions for the finiteness of the discrete spectrum of the characteristic equations of the radiation transfer theory. (Russian) Zbl 0552.47009 Mat. Issled. 77, 98-103 (1984). Reviewer: K.Barckow MSC: 47A55 47A10 47B25 82C70 PDF BibTeX XML Cite \textit{P. A. Kozhukhar'} and \textit{I. A. Fel'dman}, Mat. Issled. 77, 98--103 (1984; Zbl 0552.47009) OpenURL
Jafaev, D. R. On the finiteness of the discrete spectrum of the three-particle Schrödinger operator. (English) Zbl 0412.35031 Theor. Math. Phys. 25, 1065-1072 (1976). MSC: 35J10 35P05 PDF BibTeX XML Cite \textit{D. R. Jafaev}, Theor. Math. Phys. 25, 1065--1072 (1976; Zbl 0412.35031) Full Text: DOI OpenURL