In this talk I will explain what spectral stability of finite Riemannian coverings means, when we can expect such stability and some recent results on the existence of such stability.
Links:
[1] https://www.mpim-bonn.mpg.de/taxonomy/term/39
[2] https://www.mpim-bonn.mpg.de/node/3444
[3] https://www.mpim-bonn.mpg.de/node/14611