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math.DS2025
Eventual Conjugacy of Free Inert -SFTs
Jeremias Epperlein
The action of a finite group on a subshift of finite type is called free, if every point has trivial stabilizer, and it is called inert, if the induced action on the dimens…
math.DS2025
Auerbach bases, projection constants, and the joint spectral radius of principal submatrices
Jeremias Epperlein, Fabian Wirth
It is shown that compact sets of complex matrices can always be brought, via similarity transformation, into a form where all matrix entries are bounded in absolute value by the jo…
math.DS2025
The joint spectral radius is pointwise Hölder continuous
Jeremias Epperlein, Fabian Wirth
We show that the joint spectral radius is pointwise Hölder continuous. In addition, the joint spectral radius is locally Hölder continuous for -inflations. In the tw…