Quasinormal modes of non-Abelian hyperscaling violating Lifshitz black holes

We study scalar perturbations of non-Abelian hyperscaling violating Lifshitz black holes, and we find analytically the quasinormal modes for massless scalar fields in the background of a Lifshitz black hole with dynamical exponent \(z=2\) and hyperscaling violating factor \(\theta>-2\), and we find that the system is always overdamped. Also, we consider different values of the dynamical exponent and the hyperscaling violating exponent and we show numerically that the quasinormal frequencies have a negative imaginary part and the system is always overdamped. Thus, the black hole is stable under scalar field perturbations.