Trapped modes in a waveguide with a thick obstacle
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چکیده
منابع مشابه
Trapped Modes in a Waveguide with a Thick Obstacle Helen Hawkins and Leonid Parnovski
The problem of finding necessary and sufficient conditions for the existence of trapped modes in waveguides has been known since 1943, [8]. The problem is the following: consider an infinite strip M in R (or an infinite cylinder with the smooth boundary in R). The spectrum of the (positive) Laplacian (with either Dirichlet or Neumann boundary conditions) acting on this strip is easily computabl...
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ژورنال
عنوان ژورنال: Mathematika
سال: 2004
ISSN: 0025-5793,2041-7942
DOI: 10.1112/s0025579300015606