A non-local boundary value problem method for parabolic equations backward in time

The ill-posed parabolic equation backward in time

     

On the structure of positive solutions to an elliptic problem with a singular nonlinearity

We consider the following boundary value problem

     

Layer structures for the solutions to the perturbed simple pendulum problems

We consider the perturbed simple pendulum equation

     

On a class of nonlocal elliptic problems via Galerkin method

In this paper we study existence and uniqueness of solutions to some cases of the following nonlocal elliptic problem:

     

Three fixed-sign solutions of system model with Sturm-Liouville type conditions

We consider the following system of differential equations

     

On multiple fixed-sign solutions of a discrete system with Hermite boundary conditions

We consider the discrete system

     

On a class of nonlinear elliptic equations with fast increasing weight and critical growth

We are concerned with the existence of rapidly decaying solutions for the equation

     

Multiplicity of positive solutions for a class of elliptic equations in divergence form

We prove results concerning the existence and multiplicity of positive solutions for the quasilinear equation

     

A generalized porous medium equation related to some singular quasilinear problems

In this paper we study the existence and nonexistence of solutions for a Dirichlet boundary value problem whose model is

     

The existence of positive solutions for some nonlinear equation systems

In this paper we consider the existence of positive solutions of the following boundary value problem:

     

Nontrivial solutions of singular two-point boundary value problems with sign-changing nonlinear terms

The singular two-point boundary value problem

     

Density estimates for a fluid jet model in the Heisenberg group

In the Heisenberg group setting, we consider the fluid jet functional

     

Existence and multiplicity results for some quasilinear elliptic equation with weights

Using variational methods, we show the existence and multiplicity of solutions of singular boundary value problems of the type

     

Existence of solutions of boundary value problems for second order functional differential equations

In this paper, we deal with the boundary value problem

     

Nonlinear discrete Sturm-Liouville problems

In this paper we study nonlinear boundary value problems of the form