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DTSTART:20190331T030000
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DTSTART:20181028T020000
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BEGIN:VEVENT
DTSTAMP:20190722T143815Z
UID:5b4d8fb086fc6573198685@ist.ac.at
DTSTART:20190131T163000
DTEND:20190131T183000
DESCRIPTION:Speaker: Rupert Frank\nhosted by Robert Seiringer\nAbstract: We
consider the difference f(H1)?f(H0) for self-adjoint operators H0 and H1
acting in a Hilbert space. We establish a new class of estimates for the o
perator norm and the Schatten class norms of this difference. Our estimate
s utilise ideas of scattering theory and involve conditions on H0 and H1in
terms of the Kato smoothness. They allow for a much wider class of functi
ons f (including some unbounded ones) than previously available results do
. As an example we consider the case where H0=?? and H1=??+V are the free
and the perturbed Schrdinger operators in L2(?d)\, and Vis a real-valued s
hort range potential.The talk is based on joint work with A. Pushnitski.
LOCATION:Big Seminar room Ground floor / Office Bldg West (I21.EG.101)\, IS
T Austria
ORGANIZER:swheatle@ist.ac.at
SUMMARY:Functions of perturbed self-adjoint operators
URL:https://talks-calendar.app.ist.ac.at/events/1779
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