Results 31 to 40 of about 294 (71)
Advanced Nonlinear Studies, 2019 Efficient conditions guaranteeing the existence and multiplicity of T-periodic solutions to the second order differential equation u′′=h(t)g(u){u^{\prime\prime}=h(t)g(u)} are established.
Hakl Robert, Zamora Manuel
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Infinitely Many Radial Solutions for a Sub-Super Critical Dirichlet Boundary Value Problem in a Ball [PDF]
, 2007 We prove the existence of infinitely many solutions to a semilinear Dirichlet boundary value problem in a ball for a nonlinearity g(u) that grows subcritically for u positive and supercritically for u ...
Castro, Alfonso +2 more
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Existence of solutions for singular fully nonlinear equations [PDF]
, 2011 In this note we describe how to approximate some classes of singular equations by nonsingular equations. We obtain a solution to each nonsingular problem and estimates guaranteeing that the limiting function is a solution of the original ...
Montenegro, Marcelo
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Positive solutions of nonlinear Dirichlet BVPs in ODEs with time and space singularities
Boundary Value Problems, 2013 In this paper, we discuss the existence of positive solutions to the singular Dirichlet boundary value problems (BVPs) for ordinary differential equations (ODEs) of the form u″(t)+atu′(t)−at2u(t)=f(t,u(t),u′(t)),u(0)=0,u(T)=0, where a∈(−1,0).
I. Rachunková +3 more
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Positive solutions of a singular fractional boundary value problem with a fractional boundary condition [PDF]
, 2017 For \(\alpha\in(1,2]\), the singular fractional boundary value problem \[D^{\alpha}_{0^+}x+f\left(t,x,D^{\mu}_{0^+}x\right)=0,\quad 0\lt t\lt 1,\] satisfying the boundary conditions \(x(0)=D^{\beta}_{0^+}x(1)=0\), where \(\beta\in(0,\alpha-1]\), \(\mu\in(
Lyons, Jeffrey W. +1 more
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Application of p-regularity theory to nonlinear boundary value problems
, 2013 The paper studies the question of solution existence to a nonlinear equation in the degenerate case. This question is studied for three particular boundary value problems for ordinary and partial second-order differential equations.
Wiesław Grzegorczyk +2 more
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, 2013 In this paper, we consider the nonlocal problems for nonlinear first-order evolution inclusions in an evolution triple of spaces. Using techniques from multivalued analysis and fixed point theorems, we prove existence theorems of solutions for the cases ...
Jingrui Zhang +3 more
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Method of quasilinearization for a nonlocal singular boundary value problem in weighted spaces
, 2013 This paper studies the existence and uniqueness of solutions for a nonlocal singular boundary value problem of second-order integro-differential equations in weighted spaces.
R. Agarwal, B. Ahmad, A. Alsaedi
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Existence of solutions for second-order three-point integral boundary value problems at resonance
, 2013 A class of second-order three-point integral boundary value problems at resonance is investigated in this paper. Using intermediate value theorems, we obtain a sufficient condition for the existence of the solution for the equation.
Hongliang Liu, Z. Ouyang
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Fixed Point Theory and Applications, 2011 By obtaining intervals of the parameter λ, this article investigates the existence of a positive solution for a class of nonlinear boundary value problems of second-order differential equations with integral boundary conditions in abstract spaces ...
Zhang Peiguo
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