Complete Asymptotic Expansion of the Integrated Density of States of Multidimensional Almost-Periodic Pseudo-Differential Operators
@article{Morozov2012CompleteAE, title={Complete Asymptotic Expansion of the Integrated Density of States of Multidimensional Almost-Periodic Pseudo-Differential Operators}, author={Sergey Morozov and Leonid Parnovski and Roman Shterenberg}, journal={Annales Henri Poincar{\'e}}, year={2012}, volume={15}, pages={263-312} }
We obtain a complete asymptotic expansion of the integrated density of states of operators of the form $${H = (-\Delta)^w+ B}$$ in $${\mathbb{R}^d}$$ . Here w > 0 and B belong to a wide class of almost-periodic self-adjoint pseudo-differential operators of order less than 2w. In particular, we obtain such an expansion for magnetic Schrödinger operators with either smooth periodic or generic almost-periodic coefficients.
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References
SHOWING 1-10 OF 21 REFERENCES
Complete asymptotic expansion of the integrated density of states of multidimensional almost-periodic Schrödinger operators
- Mathematics
- 2012
We obtain a complete asymptotic expansion of the integrated density of states of operators of the form \({H = (-\Delta)^w+ B}\) in \({\mathbb{R}^d}\) . Here w > 0 and B belong to a wide class of…
Asymptotics of the integrated density of states for periodic elliptic pseudo-differential operators in dimension one
- Mathematics
- 2006
We consider a periodic pseudo-differential operator on the real line, which is a lower-order perturbation of an elliptic operator with a homogeneous symbol and constant coefficients. It is proved…
On the density of states for the periodic Schrödinger operator
- Mathematics
- 2000
An asymptotic formula for the density of states of the polyharmonic periodic operator (−δ)l+V inRn,n≥2,l>1/2 is obtained. Special consideration is given to the case of the Schrödinger…
Asymptotic of the density of states for the Schrödinger operator with periodic electromagnetic potential
- Mathematics
- 1997
For the Schrodinger operator in L2(Rn), n>1, with C∞ periodic electromagnetic potential, we give an asymptotic formula of the integrate density of states of the form N(μ)=anμn/2+O(μ(n−2+e)/2), ∀e>0.…
Bethe-Sommerfeld conjecture for periodic operators with strong perturbations
- Mathematics
- 2010
We consider a periodic self-adjoint pseudo-differential operator H=(−Δ)m+B, m>0, in ℝd which satisfies the following conditions: (i) the symbol of B is smooth in x, and (ii) the perturbation B has…
Asymptotic expansion of the integrated density of states of a two-dimensional periodic Schrödinger operator
- Mathematics
- 2008
We prove the complete asymptotic expansion of the integrated density of states of a two-dimensional Schrödinger operator with a smooth periodic potential.
ASYMPTOTIC EXPANSION OF THE STATE DENSITY AND THE SPECTRAL FUNCTION OF A HILL OPERATOR
- Mathematics
- 1987
Complete asymptotic expansions are obtained for the integrated state density and the spectral function of a Hill operator with smooth potential. These expansions can be differentiated any number of…
On the High‐Energy Asymptotics of the Integrated Density of States
- Mathematics
- 2002
Assuming that the integrated density of states of a Schrödinger operator admits a high‐energy asymptotic expansion, the authors give explicit formulae for the coefficients of this expansion in terms…
Regularized Traces and Taylor Expansions for the Heat Semigroup
- Mathematics
- 2001
The coefficients in asymptotics of regularized traces and associated trace (spectral) distributions for Schrödinger operators with short and long range potentials are computed. A kernel expansion for…
Spectrum of multidimensional periodic operators
- Mathematics
- 1990
Let Ω be a lattice in the n-dimensional Euclidean space Rn and let F be the fundamental domain of the lattice Ω. We denote by H the Schrödinger operator generated in L2(Rn) by the expression −‡u +…