AbstractIn this paper we study the existence of positive solutions of the equation (φ(x′))′+a(t)f(x(t))=0, where φ:R→R is an increasing homeomorphism and homomorphism and φ(0)=0, subject to linear mixed boundary conditions by a simple application of a fixed point index theorem in cones
AbstractIn this article we present a new fixed point theorem for a class of general mixed monotone o...
Abstract. In this paper, we concentrate on existence of positive solution for the second-order diffe...
Abstract. In this paper some existence and nonexistence results for positive solutions are obtained ...
AbstractIn this paper, by using the fixed-point index theorems, we study the existence of at least o...
We discuss the class of $u_0$-positive linear operators relative to two cones and use a comparison ...
AbstractIn this paper the existence and nonexistence results of positive solutions are obtained for ...
We study the existence of positive solutions to the boundary-value problem $$ displaylines u''+a(t)f...
We are concerned with the existence of positive solutions for the nonlinear third-order three-point ...
AbstractLet ai ≥ 0 for i = 1,…, m − 3 and am−2 > 0. Let ξi satisfy 0 < ξ1 < ξ2 < … < ξm−2 < 1 and Σm...
In this paper, we investigate the problem of existence and nonexistence of positive solutions for th...
AbstractIn this paper, a new fixed-point theorem of functional type in a cone is established. With u...
AbstractLet a∈C[0,1], b∈C([0,1],(−∞,0]). Let φ1(t) be the unique solution of the linear boundary val...
Abstract. In this paper, the existence theorem of two positive solutions is established for nonlinea...
AbstractLet ai > 0 for i = 1, …, m − 2. Let ξi satisfy 0 = ξ0 < ξ1 < ξ2 < … < ξm−2 < ξm−1 = 1 and ∑m...
Abstract: This paper is concerned with the existence of positive solutions to the (n; p) boundary va...
AbstractIn this article we present a new fixed point theorem for a class of general mixed monotone o...
Abstract. In this paper, we concentrate on existence of positive solution for the second-order diffe...
Abstract. In this paper some existence and nonexistence results for positive solutions are obtained ...
AbstractIn this paper, by using the fixed-point index theorems, we study the existence of at least o...
We discuss the class of $u_0$-positive linear operators relative to two cones and use a comparison ...
AbstractIn this paper the existence and nonexistence results of positive solutions are obtained for ...
We study the existence of positive solutions to the boundary-value problem $$ displaylines u''+a(t)f...
We are concerned with the existence of positive solutions for the nonlinear third-order three-point ...
AbstractLet ai ≥ 0 for i = 1,…, m − 3 and am−2 > 0. Let ξi satisfy 0 < ξ1 < ξ2 < … < ξm−2 < 1 and Σm...
In this paper, we investigate the problem of existence and nonexistence of positive solutions for th...
AbstractIn this paper, a new fixed-point theorem of functional type in a cone is established. With u...
AbstractLet a∈C[0,1], b∈C([0,1],(−∞,0]). Let φ1(t) be the unique solution of the linear boundary val...
Abstract. In this paper, the existence theorem of two positive solutions is established for nonlinea...
AbstractLet ai > 0 for i = 1, …, m − 2. Let ξi satisfy 0 = ξ0 < ξ1 < ξ2 < … < ξm−2 < ξm−1 = 1 and ∑m...
Abstract: This paper is concerned with the existence of positive solutions to the (n; p) boundary va...
AbstractIn this article we present a new fixed point theorem for a class of general mixed monotone o...
Abstract. In this paper, we concentrate on existence of positive solution for the second-order diffe...
Abstract. In this paper some existence and nonexistence results for positive solutions are obtained ...
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