4 citations · 4 across the 4 of their papers we have counts for
5 papers
Non-selfadjoint perturbations of selfadjoint operators in 2 dimensions IIIa. One branching point
M. Hitrik, J. Sjoestrand
This is the third in a series of works devoted to spectral asymptotics for non-selfadjoint perturbations of selfadjoint -pseudodifferential operators in dimension 2. We assume t…
Diophantine tori and spectral asymptotics for non-selfadjoint operators
Michael Hitrik, Johannes Sjoestrand, San Vu Ngoc
We study spectral asymptotics for small non-selfadjoint perturbations of selfadjoint -pseudodifferential operators in dimension 2, assuming that the classical flow of the unpert…
The Calderón problem with partial data
C. E. Kenig, J. Sjoestrand, G. Uhlmann
In this paper we improve an earlier result by Bukhgeim and Uhlmann, by showing that in dimension larger than or equal to three, the knowledge of the Cauchy data for the Schrödinger…
Non-selfadjoint perturbations of selfadjoint operators in 2 dimensions II. Vanishing Averages
Michael Hitrik, Johannes Sjoestrand
This is the second in a series of works devoted to small non-selfadjoint perturbations of selfadjoint semiclassical pseudodifferential operators in dimension 2. As in our previous…
Birkhoff Normal Forms in Semi-Classical Inverse Problems
A. Iantchenko, J. Sjoestrand, M. Zworski
We apply recent results on semi-classical trace formulae and on Birkhoff normal forms for semi-classical Fourier integral operators to a wide range of semi-classical and high energ…