A new impulsive multi-orders fractional differential equation is studied. The existence and uniqueness results are obtained for a nonlinear problem with fractional integral boundary conditions by applying standard fixed ...

By applying the monotone iterative technique and the method of lower and upper solutions, this paper investigates the existence of extremal solutions for a class of nonlinear fractional differential equations, which involve ...

In this paper, we consider the following nonlinear k-Hessian system [Formula presented] where G is a nonlinear operator. This paper first proves the existence of the entire positive bounded radial solutions, and secondly ...