Stability of Asymptotically Flat $$\mathbf{(2+1)}$$-Dimensional Black Holes with Gauss–Bonnet Corrections

Using integration of the wave equation in time domain, we show that scalar field perturbations around the $$(2+1)$$ -dimensional asymptotically flat black hole with Gauss–Bonnet corrections is dynamically stable even for the near-extreme values of the coupling constant.

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