arXiv subjects

Oscar Bandtlow

Publications and source records attributed to Oscar Bandtlow.

2 recordsLinked to original sources

arXiv2020

Numerical resonances for Schottky surfaces via Lagrange-Chebyshev approximation

We present a numerical method to calculate resonances of Schottky surfaces based on Selberg theory, transfer operator techniques and Lagrange-Chebyshev approximation. This method is an alternative to the method based on periodic orbit expansion used previously in this context.

math.SP↗

arXiv2016

Lower bounds for the Ruelle spectrum of analytic expanding circle maps

We prove that there exists a dense set of analytic expanding maps of the circle for which the Ruelle eigenvalues enjoy exponential lower bounds. The proof combines potential theoretic techniques and explicit calculations for the spectrum of expanding Blaschke products.

math.DS↗