Now showing items 1-5 of 5

    • Characterization of constant sign Green's function for a two-point boundary-value problem by means of spectral theory 

      Cabada Fernández, Alberto; Saavedra López, Lorena (Texas State University, Department of Mathematics, 2017)
      This article is devoted to the study of the parameter’s set where the Green’s function related to a general linear nth-order operator, depending on a real parameter, Tn[M], coupled with many different two point boundary value ...
    • Constant sign solution for a simply supported beam equation 

      Cabada Fernández, Alberto; Saavedra López, Lorena (University of Szeged, 2017)
      The aim of this paper is to ensure the existence of constant sign solutions for the fourth order boundary value problem. This problem models the behavior of a suspension bridge assuming that the vertical displacement ...
    • Existence of solutions for non-linear boundary value problems 

      Saavedra López, Lorena (2017)
      This Thesis contains a detailed collection of the different results proved by the author in her predoctoral stage. The interest of the non-linear differential equations is well-known. This is due to their applications in ...
    • Multiple positive solutions to a fourth-order boundary-value problem 

      Cabada Fernández, Alberto; Precup, Radu; Saavedra López, Lorena; Tersian, Stepan A. (Texas State University. Department of Mathematics, 2016)
      We study the existence, localization and multiplicity of positive solutions for a nonlinear fourth-order two-point boundary value problem. The approach is based on critical point theorems in conical shells, Krasnosel’ski˘ı’s ...
    • The eigenvalue characterization for the constant sign Green’s functions of (k,n−k)(k,n−k) problems 

      Cabada Fernández, Alberto; Saavedra López, Lorena (Springer International Publishing, 2016-02-11)
      This paper is devoted to the study of the sign of the Green’s function related to a general linear nth-order operator, depending on a real parameter, Tn[M]Tn[M], coupled with the (k,n−k)(k,n−k) boundary value conditions. If ...





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