J. Sjöstrand

activity

19952026

most citedOn Schroedinger Equations with Concentrated Nonlinearities

65 citations · 165 across the 14 of their papers we have counts for

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3 papers · 1 filter

math.AP2026

Stationary phase with Cauchy singularity. A critical point of signature $(+, -)$

Christian Klein, Johannes Sjöstrand, Maher Zerzeri

Asymptotic expressions for an integral appearing in the solution of a d-bar problem are presented. The integral is a solid Cauchy transform of a function with a rapidly oscillating…

math.AP2020

Large $∣ k ∣$ behavior of complex geometric optics solutions to d-bar problems

C. Klein, J. Sjöstrand, N. Stoilov

Complex geometric optics solutions to a system of d-bar equations appearing in the context of electrical impedance tomography and the scattering theory of the integrable Davey-Stew…

math.AP2011★ 5 cited

Weyl law for semi-classical resonances with randomly perturbed potentials

Johannes Sjoestrand

In this work we consider semi-classical Schrödinger operators with potentials supported in a bounded strictly convex subset $O$ of $R^{n}$ with smooth boundary. Letting…

Stationary phase with Cauchy singularity. A critical point of signature (+,−)

Large ∣k∣ behavior of complex geometric optics solutions to d-bar problems

Weyl law for semi-classical resonances with randomly perturbed potentials

Stationary phase with Cauchy singularity. A critical point of signature $(+, -)$

Large $∣ k ∣$ behavior of complex geometric optics solutions to d-bar problems