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UID:news1758@dmi.unibas.ch
DTSTAMP;TZID=Europe/Zurich:20241107T104418
DTSTART;TZID=Europe/Zurich:20241122T160000
SUMMARY:BZ Seminar in Analysis: Leonid Parnovski (London)
DESCRIPTION:The existence of spectral asymptotics of Laplace or Schroedinge
 r operators acting on Riemannian manifolds is a classical problem known fo
 r more than 100 years. It has ben known for a long time that obstacles to 
 the existence of spectral asymptotic expansions are periodic and looping t
 rajectories of the geodesic flow. A conjecture formulated in 2016 stated t
 hat these trajectories are the only such obstacles. I will discuss the his
 tory of this problem and describe the recent progress: proving this conjec
 ture in special cases\, as well as constructing some counterexamples.
X-ALT-DESC:<p>The existence of spectral asymptotics of Laplace or Schroedin
 ger operators acting on Riemannian manifolds is a classical problem known 
 for more than 100 years. It has ben known for a long time that obstacles t
 o the existence of spectral asymptotic expansions are periodic and looping
  trajectories of the geodesic flow. A conjecture formulated in 2016 stated
  that these trajectories are the only such obstacles. I will discuss the h
 istory of this problem and describe the recent progress: proving this conj
 ecture in special cases\, as well as constructing some counterexamples.</p
 >
DTEND;TZID=Europe/Zurich:20241122T170000
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