๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Gaps and eigenfrequencies in the spectrum of a periodic acoustic waveguide

โœ Scribed by S. A. Nazarov


Book ID
120802821
Publisher
SP MAIK Nauka/Interperiodica
Year
2013
Tongue
English
Weight
726 KB
Volume
59
Category
Article
ISSN
1063-7710

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


A gap in the essential spectrum of a cyl
โœ Giuseppe Cardone; Sergey A. Nazarov; Carmen Perugia ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 254 KB

It is proved that small periodic singular perturbation of a cylindrical waveguide surface may open a gap in the essential spectrum of the Dirichlet problem for the Laplace operator. If the perturbation period is long and the caverns in the cylinder are small, the gap certainly opens.