Multiple positive solutions of fourth-order four-point boundary-value problems with changing sign coefficient.
Multiple positive solutions of nonlinear singular -point boundary value problem for second-order dynamic equations with sign changing coefficients on time scales.
Multiple positive solutions of some Fredholm integral equations arisen from nonlocal boundary-value problems.
Multiple positive solutions of Sturm-Liouville equations with singularities.
Multiple positive solutions of the singular boundary value problem for second-order impulsive differential equations on the half-line.
Multiple positive solutions to fourth-order singular boundary-value problems in abstract spaces.
Multiple positive solutions to multipoint one-dimensional -Laplacian boundary value problem with impulsive effects
In this paper, using a fixed point theorem on a convex cone, we consider the existence of positive solutions to the multipoint one-dimensional -Laplacian boundary value problem with impulsive effects, and obtain multiplicity results for positive solutions.
Multiple positive symmetric solutions to -Laplacian dynamic equations on time scales.
Multiplicity of positive periodic solutions of singular semipositone third-order boundary value problems.
Multiplicity of positive solutions for a fourth-order quasilinear singular differential equation.
Multiplicity of positive solutions for a nonlinear fourth order equation
We study the existence and multiplicity of positive solutions of the nonlinear fourth order problem ⎧ in (0,1), ⎨ ⎩u(0) = a ≥ 0, u’(0) = a’ ≥ 0, u(1) = b ≥ 0, u(1) = -b’ ≤ 0 The methods employed are upper and lower solutions and degree theory arguments.
Multiplicity of positive solutions for four-point boundary value problems of impulsive differential equations with -Laplacian.
Multiplicity of positive solutions to second order differential equations with Neumann boundary conditions
We study the existence of positive solutions to second order nonlinear differential equations with Neumann boundary conditions. The proof relies on a fixed point theorem in cones, and the positivity of Green's function plays a crucial role in our study.
Multi-point boundary value problems for higher order differential equations.
Necessary and sufficient conditions for the existence of positive solution for singular boundary value problems on time scales.
New existence results for higher-order nonlinear fractional differential equation with integral boundary conditions.
New existence theorems of positive solutions for singular boundary value problems.
New results on the positive solutions of nonlinear second-order differential systems.
Non-homogeneous boundary-value problems of higher order differential equations with -Laplacian.
Nonlinear eigenvalue problems for higher order Lidstone boundary value problems.