34 citations · 118 across the 30 of their papers we have counts for
4 papers · 1 filter
The interior transmission problem and bounds on transmission eigenvalues
Michael Hitrik, Katsiaryna Krupchyk, Petri Ola +1
We study the interior transmission eigenvalue problem for sign-definite multiplicative perturbations of the Laplacian in a bounded domain. We show that all but finitely many comple…
Tunnel effect and symmetries for Kramers Fokker-Planck type operators
Frederic Herau, Michael Hitrik, Johannes Sjoestrand
We study operators of Kramers-Fokker-Planck type in the semiclassical limit, assuming that the exponent of the associated Maxwellian is a Morse function with a finite number …
Transmission eigenvalues for elliptic operators
Michael Hitrik, Katsiaryna Krupchyk, Petri Ola +1
A reduction of the transmission eigenvalue problem for multiplicative sign-definite perturbations of elliptic operators with constant coefficients to an eigenvalue problem for a no…
Transmission eigenvalues for operators with constant coefficients
Michael Hitrik, Katsiaryna Krupchyk, Petri Ola +1
In this paper we study the interior transmission problem and transmission eigenvalues for multiplicative perturbations of linear partial differential operator of order with…