Rotation Algebras and Continued Fractions

Conference paper
Part of the Operator Theory: Advances and Applications book series (OT, volume 181)


This paper discusses two problems related with the approximation of rotation algebras: (i) estimating the norm of almost Mathieu operators and (ii) studying a certain AF algebra associated with the continued fraction algorithm. The Effros-Shen AF algebras naturally arise as primitive quotients of this algebra.


Rotation algebras almost Mathieu operators continued fractions AF algebras 


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Copyright information

© Birkhäuser Verlag Basel/Switzerland 2008

Authors and Affiliations

  1. 1.Department of MathematicsUniversity of Illinois Urbana-ChampaignUrbanaUSA
  2. 2.Institute of Mathematics “Simion Stoilow” of the Romanian AcademyBucharestRomania

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