Hardy inequalities in tubular domains
GFM seminar
CIUL, amphitheatre
2006-03-31 14:30
2006-03-31 15:30
2006-03-31
14:30
..
15:30
by David Krejcirik (Department of Theoretical Physics, Nuclear Physics Intitute, Academy of Sciences, Rez, Czech Republic)
We show that twist of an unbounded tube in the Euclidean space gives rise to a Hardy-type inequality for the associated Dirichlet Laplacian. As an application we prove certain stability of the spectrum of the Laplacian in locally and mildly bent tubes with non-circular cross-section. We also discuss analogous phenomena induced by curvature of an ambient space or by alteration of boundary conditions.