In this paper, we prove the existence of solutions for a boundary value problem involving
both left Riemann-Liouville and right Caputo-type fractional derivatives. For this, we convert …

We prove existence of solutions for a nonlinear fractional oscillator equation with both left
Riemann-Liouville and right Caputo fractional derivatives subject to natural boundary …

Some results on the existence of solutions for a nonlinear higher order fractional differential
equation involving both the left Riemann-Liouville and the right Caputo fractional derivatives …

In this paper, the upper and lower solution method and Schauder's fixed point theorem are
employed in the study of boundary value problems for a class of second-order impulsive …

We consider a boundary value problem involving conformable derivative of order $\alpha, $
$1<\alpha< 2$ and Dirichlet conditions. To prove the existence of solutions, we apply the …

In this manuscript, we study a certain classical second-order fully nonlinear coupled system
with generalized nonlinear coupled boundary conditions satisfying the monotone …

The lower and upper solution approach has been widely employed in the literature to
ensure the existence of solutions for integer-order boundary value problems. Therefore, in …

This paper is devoted to the study of a nonlinear Euler-Bernoulli Beam type equation
involving both left and right Caputo fractional derivatives. Differently from the approaches of …

The aim of this paper is the study of a nonlinear fractional Euler–Lagrange type equation
with a nonlocal condition by means of lower and upper solutions method. For this purpose …

以研究二维自治g-Navier-Stokes 方程解的全局渐近性为目的, 用算子分解方法证明了在有界
区域上含非线性阻尼的二维自治g-Navier-Stokes 方程解的双全局吸引子存在性 …