We use a technique associated with measures of noncompactness to prove the existence of nondecreasing solutions to an integral equation with linear modification of the argument in the space C[0, 1]. In the last thirty...We use a technique associated with measures of noncompactness to prove the existence of nondecreasing solutions to an integral equation with linear modification of the argument in the space C[0, 1]. In the last thirty years there has been a great deal of work in the field of differential equations with a modified argument. A special class is represented by the differential equation with affine modification of the argument which can be delay differential equations or differential equations with linear modifications of the argument. In this case we study the following integral equation x(t) = a(t) + (Tx)(t) ∫0^σ(t) u(t, s, x(s), x(λs))ds 0 〈 λ 〈 1 which can be considered in connection with the following Cauchy problem x'(t) = u(t, s, x(t), x(λt)), t ∈ [0, 1], 0 〈 λ 〈 1 x(0) = u0.展开更多
The aim of this present paper is to establish some new integrodifferential inequalities of Gronwall type involving functions of one independent variable which provide explicit bounds on unknown functions. The inequali...The aim of this present paper is to establish some new integrodifferential inequalities of Gronwall type involving functions of one independent variable which provide explicit bounds on unknown functions. The inequalities given here can be used in the analysis of a class of differential equations as handy tools.展开更多
This paper first proves the following equations△u-m ̄2u+f(x,u)=0, x(R ̄n,n≥3 m>0 existence of decaying positive entire solution, then emphatically, proves this solution'suniqueness.
The aim of the present paper is to establish some new integral inequalities of Gronwall type involving functions of two independent variables which provide explicit bounds on unknown functions. The inequalities given ...The aim of the present paper is to establish some new integral inequalities of Gronwall type involving functions of two independent variables which provide explicit bounds on unknown functions. The inequalities given here can be used as tools in the qualitative theory of certain partial differential and integral equations.展开更多
The goal of the present paper is to establish some new approach on the basic integral inequality of Gronwall-Bellman type and its generalizations involving function of one independent variable which provides explicit ...The goal of the present paper is to establish some new approach on the basic integral inequality of Gronwall-Bellman type and its generalizations involving function of one independent variable which provides explicit bounds on unknown functions. The inequalities given here can be used as tools in the qualitative theory of certain partial differential and integral equations.展开更多
基金the"Consejería de Educación,Cultura y Deporte del Gobierno de Canarias"P.I.2003/068"Ministerio de Educación y Ciencia"MTM2004/05878
文摘We use a technique associated with measures of noncompactness to prove the existence of nondecreasing solutions to an integral equation with linear modification of the argument in the space C[0, 1]. In the last thirty years there has been a great deal of work in the field of differential equations with a modified argument. A special class is represented by the differential equation with affine modification of the argument which can be delay differential equations or differential equations with linear modifications of the argument. In this case we study the following integral equation x(t) = a(t) + (Tx)(t) ∫0^σ(t) u(t, s, x(s), x(λs))ds 0 〈 λ 〈 1 which can be considered in connection with the following Cauchy problem x'(t) = u(t, s, x(t), x(λt)), t ∈ [0, 1], 0 〈 λ 〈 1 x(0) = u0.
文摘The aim of this present paper is to establish some new integrodifferential inequalities of Gronwall type involving functions of one independent variable which provide explicit bounds on unknown functions. The inequalities given here can be used in the analysis of a class of differential equations as handy tools.
文摘This paper first proves the following equations△u-m ̄2u+f(x,u)=0, x(R ̄n,n≥3 m>0 existence of decaying positive entire solution, then emphatically, proves this solution'suniqueness.
文摘The aim of the present paper is to establish some new integral inequalities of Gronwall type involving functions of two independent variables which provide explicit bounds on unknown functions. The inequalities given here can be used as tools in the qualitative theory of certain partial differential and integral equations.
文摘The goal of the present paper is to establish some new approach on the basic integral inequality of Gronwall-Bellman type and its generalizations involving function of one independent variable which provides explicit bounds on unknown functions. The inequalities given here can be used as tools in the qualitative theory of certain partial differential and integral equations.