Geodesic stability and Quasi normal modes via Lyapunov exponent for Hayward Black Hole

Monimala Mondal, Parthapratim Pradhan, Farook Rahaman +1

We derive proper-time Lyapunov exponent $({\lambda }_p)$ and coordinate-time Lyapunov exponent $({\lambda }_c)$ for a regular Hayward class of black hole. The proper-time corresponds to $\tau$ and…