COVID-19 has become a world wide pandemic since its first appearance at the end of the
year 2019. Although some vaccines have already been announced, a new mutant version …

In this paper, we investigate the effect of delayed feedbacks on the generalized Sprott B
system with hidden attractors and its local Hopf bifurcation. We choose the delay as the …

In this paper, the problem of chaos control in discrete-time chaotic systems with unknown
governing equations and limited measurable states is investigated. Using the time-series of …

The aim of this paper is to give some new insights into the Shimizu–Morioka system x˙= y,
y˙= x− λ y− xz, z˙=− α z+ x 2, from the integrability point of view. Firstly, we propose a linear …

This paper is concerned with the Jacobi stability of the Shimizu–Morioka model by using the
KCC-theory. First, by associating the nonlinear connection and Berwald connection, five …

In this article, a novel robust nonlinear controller approach is focused to study theoretically,
the reduced-order synchronization phenomena of two unrelated time-delayed chaotic …

This paper addresses the problem of chaos control in an economic mathematical dynamical
model. By regarding the control variables as the bifurcation parameters, the stability of …

We consider anti-control of Hopf bifurcation for the Shimizu–Morioka system by using an
explicit criterion. We first provide the two conditions for the existence of Hopf bifurcation, that …

This paper deals with the dynamic behavior of the chaotic nonlinear time delay systems of
general form x˙(t)= g (x (t), x (t− τ)) ̇x(t)=g(x(t),x(t-τ)). We carry out stability analysis to identify …

This research study inspects the effectiveness of synchronization methods such as active
control and backstepping control from systematic design procedures of a synchronized …