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Selberg Zeta Functions and Transfer Operators - An Experimental Approach to Singular Perturbations (Paperback, 1st ed. 2017)
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Selberg Zeta Functions and Transfer Operators - An Experimental Approach to Singular Perturbations (Paperback, 1st ed. 2017)
Series: Lecture Notes in Mathematics, 2139
Expected to ship within 10 - 15 working days
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This book presents a method for evaluating Selberg zeta functions
via transfer operators for the full modular group and its
congruence subgroups with characters. Studying zeros of Selberg
zeta functions for character deformations allows us to access the
discrete spectra and resonances of hyperbolic Laplacians under both
singular and non-singular perturbations. Areas in which the theory
has not yet been sufficiently developed, such as the spectral
theory of transfer operators or the singular perturbation theory of
hyperbolic Laplacians, will profit from the numerical experiments
discussed in this book. Detailed descriptions of numerical
approaches to the spectra and eigenfunctions of transfer operators
and to computations of Selberg zeta functions will be of value to
researchers active in analysis, while those researchers focusing
more on numerical aspects will benefit from discussions of the
analytic theory, in particular those concerning the transfer
operator method and the spectral theory of hyperbolic spaces.
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