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SUMMARY:Lyapunov exponents of quasi-periodic cocycles - Klein\, S (NTNU)
DTSTART:20150407T140000Z
DTEND:20150407T142500Z
UID:TALK58803@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Co-author: Pedro Duarte (University of Lisbon) \n\nThe purpose
  of this talk is to review some recent results concerning Lyapunov exponen
 ts of higher dimensional\, analytic cocycles over a multi-frequency torus 
 translation. Such cocycles appear naturally in the study of band lattice q
 uasi-periodic Schrodinger operators. \n\nThe main new feature of this work
  is allowing a cocycle depending on several variables to have singularitie
 s\, which requires a careful analysis involving pluri-subharmonic and anal
 ytic functions of several variables.\n
LOCATION:Seminar Room 1\, Newton Institute
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