Article
Comm. Math. Phys. (to appear)
[DOI: 10.1007/s00220-008-0724-x]
A family of Schrödinger operators whose spectrum is an interval
Helge Krüger
By approximation, I show that the spectrum of the Schrödinger operator with
potential V(n) = f(n\rho \pmod 1) for f continuous
and \rho > 0, \rho ∉ \N is an interval.
MSC2000: Primary 81Q10; Secondary 47B36
Keywords: Schrödinger Operators, Spectrum