The subject of this paper is the existence, uniqueness and stability solutions for a new sequential Van der Pol–Duffing (VdPD) jerk fractional differential oscillator with Caputo–Hadamard derivatives. arguments are based upon Banach contraction principle, Krasnoselskii fixed-point theorem Ulam–Hyers stabilities. As applications, one illustrative example included to show applicability our results.

The main objective of this addendum to the mentioned article [49] by Park is to provide some remarks on bifurcation theories for nonlinear partial differential equations (PDE) and their applications to fluid dynamics problems. We only wish to comment and list some related literatures, without any intention to provide a complete survey. For steady state PDE bifurcation problems, the often used c...

In this paper, we study a coupled fully hybrid system of (k,Φ)–Hilfer fractional differential equations equipped with non-symmetric (k,Φ)–Riemann-Liouville (RL) integral conditions. To prove the existence and uniqueness results, use Krasnoselskii Perov fixed-point theorems Lipschitzian matrix in context generalized Banach space (GBS). Moreover, Ulam–Hyers (UH) stability solutions is discussed b...

In this manuscript, we are concerned with the existence result of nonlinear hybrid differential equations involving $\psi-$Caputo fractional derivatives an arbitrary order $\alpha\in(0,1)$. By applying Krasnoselskii fixed point theorem and some analysis techniques, prove our main result. As application, a nontrivial example is given to demonstrate effectiveness theoretical