Goodrich, Christopher S. Nonlocal differential equations with convex convolution coefficients. (English) Zbl 1528.33001 J. Fixed Point Theory Appl. 25, No. 1, Paper No. 4, 17 p. (2023). MSC: 33B15 34B10 34B18 42A85 44A35 26A33 26A51 47H30 PDFBibTeX XMLCite \textit{C. S. Goodrich}, J. Fixed Point Theory Appl. 25, No. 1, Paper No. 4, 17 p. (2023; Zbl 1528.33001) Full Text: DOI
Wang, Youyu; Huang, Yue; Li, Xianfei Positive solutions for fractional differential equation at resonance under integral boundary conditions. (English) Zbl 1504.34054 Demonstr. Math. 55, 238-253 (2022). Reviewer: Xiping Liu (Shanghai) MSC: 34B18 34B10 34A08 34B27 47N20 44-XX PDFBibTeX XMLCite \textit{Y. Wang} et al., Demonstr. Math. 55, 238--253 (2022; Zbl 1504.34054) Full Text: DOI
Goodrich, Christopher S. Differential equations with multiple sign changing convolution coefficients. (English) Zbl 1489.34037 Int. J. Math. 32, No. 8, Article ID 2150057, 28 p. (2021). Reviewer: Sotiris K. Ntouyas (Ioannina) MSC: 34B10 34B18 44A35 47N20 PDFBibTeX XMLCite \textit{C. S. Goodrich}, Int. J. Math. 32, No. 8, Article ID 2150057, 28 p. (2021; Zbl 1489.34037) Full Text: DOI
Brown, B. Malcolm; Christiansen, Jacob S. On the Krein and Friedrichs extensions of a positive Jacobi operator. (English) Zbl 1078.39019 Expo. Math. 23, No. 2, 179-186 (2005). Reviewer: Bolis Basit (Clayton) MSC: 39A70 39A10 47B36 47B25 44A60 PDFBibTeX XMLCite \textit{B. M. Brown} and \textit{J. S. Christiansen}, Expo. Math. 23, No. 2, 179--186 (2005; Zbl 1078.39019) Full Text: DOI
Keich, Uri Krein’s strings, the symmetric moment problem, and extending a real positive definite function. (English) Zbl 0935.44003 Commun. Pure Appl. Math. 52, No. 10, 1315-1334 (1999). Reviewer: Ram Kishore Saxena (Jodhpur) MSC: 44A60 47A57 PDFBibTeX XMLCite \textit{U. Keich}, Commun. Pure Appl. Math. 52, No. 10, 1315--1334 (1999; Zbl 0935.44003) Full Text: DOI
Li, Guozhen On asymptotic positive solutions for uniformly \(u_ 0\)-convex operator equations \(Ax=x\). (Chinese) Zbl 0566.47040 Jiangxi Shifandaxue Xuebao 1984, No. 2, 13-14 (1984). Reviewer: Yu Xintai MSC: 47J05 47H05 44A15 PDFBibTeX XMLCite \textit{G. Li}, Jiangxi Shifandaxue Xuebao 1984, No. 2, 13--14 (1984; Zbl 0566.47040)
Berg, Christian; Maserick, P. H. Polynomially positive definite sequences. (English) Zbl 0486.44004 Math. Ann. 259, 487-495 (1982). MSC: 44A60 PDFBibTeX XMLCite \textit{C. Berg} and \textit{P. H. Maserick}, Math. Ann. 259, 487--495 (1982; Zbl 0486.44004) Full Text: DOI EuDML