Zhensikbaeb, K. S. Chebyshev monosplines and best quadrature formula. (Russian) Zbl 0703.41017 Vestn. Akad. Nauk Kaz. SSR 1988, No. 4, 73-76 (1988). MSC: 41A15 41A55 PDFBibTeX XMLCite \textit{K. S. Zhensikbaeb}, Vestn. Akad. Nauk Kaz. SSR 1988, No. 4, 73--76 (1988; Zbl 0703.41017)
Harrell, E. M. II General bounds for the eigenvalues of Schrödinger operators. (English) Zbl 0678.35075 Maximum principles and eigenvalue problems in partial differential equations, Proc. Conf., Knoxville/Tenn. 1987, Pitman Res. Notes Math. Ser. 175, 146-166 (1988). Reviewer: R.Didier MSC: 35P15 35J10 PDFBibTeX XML
Kudryavtsev, L. D. Variational problems with free ends on bounded and unbounded intervals. (Russian) Zbl 0659.49001 Tr. Mat. Inst. Steklova 181, 137-146 (1988). Reviewer: I.Bock MSC: 49J15 46E30 49S05 PDFBibTeX XMLCite \textit{L. D. Kudryavtsev}, Tr. Mat. Inst. Steklova 181, 137--146 (1988; Zbl 0659.49001)
Clausing, A. Polynomial two-point expansions. (English) Zbl 0657.41018 Aequationes Math. 35, No. 2-3, 213-231 (1988). Reviewer: A.Clausing MSC: 41A58 41A10 40A05 26A51 PDFBibTeX XMLCite \textit{A. Clausing}, Aequationes Math. 35, No. 2--3, 213--231 (1988; Zbl 0657.41018) Full Text: DOI EuDML