Gupta, Chaitan P.; Trofimchuk, Sergei A priori estimates for the existence of a solution for a multi-point boundary value problem. (English) Zbl 0967.34006 J. Inequal. Appl. 5, No. 4, 351-365 (2000). MSC: 34B10 34G20 34B15 PDFBibTeX XMLCite \textit{C. P. Gupta} and \textit{S. Trofimchuk}, J. Inequal. Appl. 5, No. 4, 351--365 (2000; Zbl 0967.34006) Full Text: DOI EuDML
Gupta, Chaitan P.; Trofimchuk, Sergej I. An interesting example for a three-point boundary value problem. (English) Zbl 0974.34010 Bull. Belg. Math. Soc. - Simon Stevin 7, No. 2, 291-302 (2000). Reviewer: Irena Rachůnková (Olomouc) MSC: 34B10 34B15 PDFBibTeX XMLCite \textit{C. P. Gupta} and \textit{S. I. Trofimchuk}, Bull. Belg. Math. Soc. - Simon Stevin 7, No. 2, 291--302 (2000; Zbl 0974.34010)
Gupta, Chaitan P.; Trofimchuk, Sergei Solvability of a multi-point boundary value problen of Neumann type. (English) Zbl 0993.34009 Abstr. Appl. Anal. 4, No. 2, 71-81 (1999). Reviewer: Alla Barmistrova (Lowell) MSC: 34B10 34B15 34G20 PDFBibTeX XMLCite \textit{C. P. Gupta} and \textit{S. Trofimchuk}, Abstr. Appl. Anal. 4, No. 2, 71--81 (1999; Zbl 0993.34009) Full Text: DOI EuDML Link
Gupta, C. P.; Trofimchuk, S. Robust existence of a solution to a three-point boundary value problem. (English) Zbl 0957.34017 Publ. Univ. Miskolc, Ser. D, Nat. Sci., Math. 40, 25-33 (1999). Reviewer: Andrzej Szulkin (Stockholm) MSC: 34B15 34G20 34B10 PDFBibTeX XMLCite \textit{C. P. Gupta} and \textit{S. Trofimchuk}, Publ. Univ. Miskolc, Ser. D, Nat. Sci., Math. 40, 25--33 (1999; Zbl 0957.34017)
Gupta, Chaitan P.; Trofimchuk, Sergej I. A Wirtinger type inequality and a three point boundary value problem. (English) Zbl 0939.26007 Dyn. Syst. Appl. 8, No. 1, 127-132 (1999). Reviewer: B.G.Pachpatte (Aurangabad) MSC: 26D10 34B10 34B15 PDFBibTeX XMLCite \textit{C. P. Gupta} and \textit{S. I. Trofimchuk}, Dyn. Syst. Appl. 8, No. 1, 127--132 (1999; Zbl 0939.26007)
Gupta, Chaitan P.; Trofimchuk, Sergej I. Existence of a solution to a three-point boundary value problem and the spectral radius of a related linear operator. (English) Zbl 0944.34009 Nonlinear Anal., Theory Methods Appl. 34, No. 4, 489-507 (1998). Reviewer: Yujun Dong (Nanjing) MSC: 34B10 34B05 PDFBibTeX XMLCite \textit{C. P. Gupta} and \textit{S. I. Trofimchuk}, Nonlinear Anal., Theory Methods Appl. 34, No. 4, 489--507 (1998; Zbl 0944.34009) Full Text: DOI
Gupta, Chaitan P.; Trofimchuk, Sergej I. Solvability of a multipoint boundary value problem and related a priori estimates. (English) Zbl 0922.34014 Can. Appl. Math. Q. 6, No. 1, 45-60 (1998). Reviewer: M.Ivanovici (Craiova) MSC: 34B10 34B15 PDFBibTeX XMLCite \textit{C. P. Gupta} and \textit{S. I. Trofimchuk}, Can. Appl. Math. Q. 6, No. 1, 45--60 (1998; Zbl 0922.34014)
Gupta, Chaitan P.; Trofimchuk, Sergej I. A sharper condition for the solvability of a three-point second order boundary value problem. (English) Zbl 0874.34014 J. Math. Anal. Appl. 205, No. 2, 586-597 (1997). Reviewer: P.Talpalaru (Iaşi) MSC: 34B10 PDFBibTeX XMLCite \textit{C. P. Gupta} and \textit{S. I. Trofimchuk}, J. Math. Anal. Appl. 205, No. 2, 586--597 (1997; Zbl 0874.34014) Full Text: DOI