6 citations · 13 across the 7 of their papers we have counts for
8 papers
Characterization of constant sign Green's function of a two point boundary value problem by means of spectral theory
Alberto Cabada, Lorena Saavedra
This paper is devoted to the study of the parameter's set where the Green's function related to a general linear -order operator, depending on a real parameter, $T_n[M]…
Existence of solutions for -order nonlinear differential boundary value problems by means of new fixed point theorems
Alberto Cabada, Lorena Saavedra
This paper is devoted to prove the existence of one or multiple solutions of a wide range of nonlinear differential boundary value problems. To this end, we obtain some new fixed p…
Constant sign solution for simply supported beam equation with non-homogeneous boundary conditions
Alberto Cabada, Lorena Saavedra
The aim of this paper is to study the following fourth-order operator: T[p,c]\,u(t)\equiv u^{(4)}(t)-p\,u"(t)+c(t)\,u(t)\,,\quad t\in I\equiv [a,b]\,, coupled with the non-homogene…
Existence of solutions for nonlinear p-Laplacian diference equations
L. Saavedra, S. Tersian
The aim of this paper is the study of existence of solutions for non- linear p-Laplacian difference equations. In the first part, the existence of a nontrivial homoclinic solution…
Constant sign Green's function for simply supported beam equation
Alberto Cabada, Lorena Saavedra
The aim of this paper consists on the study of the following fourth-order operator: \begin{equation}\label{Ec::T4} T[M]\,u(t)\equiv u^{(4)}(t)+p_1(t)\,u"'(t)+p_2(t)\,u"(t)+M\,u(t)\…
Multiple positive solutions to a fourth order boundary value problem
Alberto Cabada, Radu Precup, Lorena Saavedra +1
We study the existence and multiplicity of positive solutions for a nonlinear fourth-order two-point boundary value problem. The approach is based on critical point theorems in con…
Disconjugacy characterization by means of spectral of problems
Alberto Cabada, Lorena Saavedra
This paper is devoted to the description of the interval of parameters for which the general linear -order equation \begin{equation} \label{e-Ln} T_n[M]\,u(t) \equiv u^…
The eigenvalue Characterization for the constant Sign Green's Functions of problems
Alberto Cabada, Lorena Saavedra
This paper is devoted to the study of the sign of the Green's function related to a general linear -order operator, depending on a real parameter, , coupled wit…