This review paper aims at answering a basic question on the sign of Lyapunov exponents. A
few recent papers reported hyperchaotic system having the sign of Lyapunov exponents as …

In this paper, the fractional-order generalized Lotka–Volterra (GLV) model and its
discretization are investigated qualitatively. A sufficient condition for existence and …

This study presents a new three dimensional continuous time chaotic system. Dynamical
analysis and numerical simulation of the new chaotic system were first carried out. Then …

In this paper, we investigate the effect of multiple delays on the 3-D simple chaotic system
with hidden chaotic attractors coexisting with one stable equilibrium by Wang and Chen. In …

This paper presents an analytical framework to investigate the dynamical behavior of a new
fractional-order hyperchaotic circuit system. A sufficient condition for existence, uniqueness …

This article investigates the neuroadaptive optimal fixed-time synchronization and its circuit
realization along with dynamical analysis for unidirectionally coupled fractional-order (FO) …

For a three-dimensional autonomous four-wing chaotic attractor, this paper rigorously
verifies its chaotic properties by using topological horseshoe theory and numerical …

This paper presents an analytical framework to investigate the dynamical behavior of a
recent chaotic jerk model with multiple attractors. The methods of analytical analysis are …