Abstract
For the linear theory of water waves, we find out families of submerged or surface-piercing bodies in an infinite three-dimensional canal, which depend on a small parameter ε > 0 and have the following property: for any positive d and natural J, there exists ε(d, J) > 0 such that, for ε ∈ (0, ε(d, J)], the segment [0, d] of the continuous spectrum of the problem contains at least J eigenvalues. These eigenvalues are associated with trapped modes, i.e., solutions of the homogeneous problem, which decay exponentially at infinity and possess finite energy. Bibliography: 27 titles.
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Translated from Zapiski Nauchnykh Seminarov POMI, Vol. 348, 2007, pp. 98–126.
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Nazarov, S.A. Concentration of the point spectrum on the continuous one in problems of linear water-wave theory. J Math Sci 152, 674–689 (2008). https://doi.org/10.1007/s10958-008-9095-2
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DOI: https://doi.org/10.1007/s10958-008-9095-2