Communications in Mathematical Physics

, Volume 229, Issue 1, pp 49–55

On the Spectrum of a Class of Second Order Periodic Elliptic Differential Operators

  • L. Friedlander

DOI: 10.1007/s00220-002-0675-6

Cite this article as:
Friedlander, L. Commun. Math. Phys. (2002) 229: 49. doi:10.1007/s00220-002-0675-6


Under an additional symmetry condition, we prove that the spectrum of a second order self-adjoint elliptic differential operator with periodic coefficients is purely absolutely continuous.

Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • L. Friedlander
    • 1
  1. 1.Department of Mathematics, University of Arizona, Tucson, AZ 85721, USAUS

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