Closed Geodesics and Huber’s Theorem

  • Peter Buser
Part of the Modern Birkhäuser Classics book series (MBC)


There is no general procedure to be found in the literature which allows us to write down the spectrum of the Laplacian of a compact Riemann surface in closed form, say as a function of the moduli. Nevertheless, isospectrality and related problems can be solved by quite explicit geometric constructions. This is possible through Huber’s theorem, which states that the spectra of the Laplacian for two compact Riemann surfaces are the same if and only if the surfaces have the same length spectrum, i.e. the same sequence of lengths of closed geodesics.


Conjugacy Class Heat Kernel Fundamental Domain Trace Formula Counting Function 
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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Département de MathématiquesEcole Polytechnique Fédérale de LausanneLausanne-EcublensSwitzerland

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