Abstract
Several anomalies of wave scattering that occur in acoustic waveguides with cylindrical or corrugated rigid walls at frequencies close to the cut-off points (thresholds) of continuous spectrum are considered. The notion of threshold resonances generated by “almost standing waves”, which cause no energy transfer to infinity, is introduced. For corrugated waveguides, examples are presented to illustrate the opening of spectral gaps (wave stopping zones) and eigenvalues near their edges and common or degenerate thresholds. Weinstein’s and Wood’s anomalies are described, which occur above and below the thresholds and manifest themselves in “almost complete” reflection and transmission of waves, and in disproportionally fast variation of the diffraction pattern, respectively. Examples of complete wave transmission (“invisibility of obstacle”) are discussed along with the procedures of sharpening and smoothing of Wood’s anomalies, specifically, formation of eigenvalues embedded into the continuous spectrum and corresponding trapped waves. The Sommerfeld, Umov–Mandelshtam, and limiting absorption principles are compared along with the specific features of their application at thresholds.
Similar content being viewed by others
Notes
The term is conventionally used for waveguides with soft walls generating Dirichlet boundary conditions.
In this paper, elastic waveguides are understood as waveguides described by a two- or three-dimensional system of equations of elasticity theory.
It differs from the continuous spectrum by the set of EVs of infinite multiplicity, which are absent in cylindrical waveguides.
Point \(\eta = - \pi \) corresponds to the same Floquet wave as point \(\eta = \pi \) does, and, therefore, the first of them is omitted.
Sequence (3) of EF for the problem of an isolated container.
Criterion of wave trapping was proposed in [74] for quantum waveguides. It may be adjusted to acoustic waveguides, but requires a large set of new notation.
One more case \({{J}_{m}}(H) = 0\) allows many possibilities, including the retention of TR; they are considered in detail in [83] and omitted below.
Its construction will be described in the journal named Sbornik Mathematics.
REFERENCES
S. A. Nazarov, Theor. Math. Phys. 167 (2), 606 (2011).
A. I. Korolkov, S. A. Nazarov, and A. V. Shanin, Z. Angew. Math. Mech. 96, 1245 (2016).
S. Molchanov and B. Vainberg, Comm. Math. Phys. 273, 533 (2007).
D. Grieser, Proc. London Math. Soc. 97, 718 (2008).
S. A. Nazarov, Math. Izv. 81 (1), 31 (2017).
S. A. Nazarov, Math. Izv. 82, (6), 1148 (2018).
A. Aslanyan, L. Parnovski, and D. Vassiliev, Q. J. Mech. Appl. Math. 53, 429 (2000).
C. M. Linton and P. McIver, Wave Motion 45 (1-2), 16 (2007).
S. A. Nazarov, Funct. Anal. Appl. 475 (3), 195(2013).
C. H. Wilcox, Scattering Theory for Diffraction Gratings (Springer, Singapore, 1997).
P. Mitra and S. W. Lee, Analytical Techniques in the Theory of Guided Waves (Macmillan, New York, 1971; Mir, Moscow, 1974).
M. Reed and B. Simon, Methods of Mathematical Physics, Vol. 3: Scattering Theory (Acad. Press, 1980; Mir, Moscow, 1982) [in Russian].
P. A. Kuchment, Usp. Mat. Nauk 37 (4), 3 (1982).
M. M. Skriganov, in Scientific Works of Steklov Mathematical Institute of the USSR Academy of Science (Nauka, Leningrad, 1985), Vol. 171 [in Russian].
P. Kuchment, Floquet Theory for Partial Differential Equations (Birchäuser, Basel, 1993).
S. A. Nazarov and B. A. Plamenevsky, Elliptic Problems in Domains with Piecewise Smooth Boundaries (Walter de Gruyter, Berlin, New York, 1994).
I. M. Gel’fand, Dokl. Akad. Nauk SSSR 73, 1117 (1950).
S. A. Nazarov, Math. Notes 87 (5), 738 (2010).
F. L. Bakharev, S. A. Nazarov, and K. M. Ruotsalainen, Appl. Anal. 88, 1 (2012).
D. Borisov and K. Pankrashkin, J. Phys. A: Math. Theor. 46 (23), 235203 (2013).
S. A. Nazarov, Vestn. St. Petersburg Univ.: Math. 46 (2), 89 (2013).
R. Hempel and K. Lienau, Commun. Partial Differ. Equations 25, 1445 (2000).
R. Hempel and O. Post, in Proc. 3rd Int. ISAAC Congress Progress in Analysis (Berlin, 2001), pp. 577–587.
O. Post, J. Differ. Equations 187, 23 (2003).
P. Exner and O. Post, J. Geom. Phys. 54 (1), 77 (2005).
O. Post, Spectral Analysis on Graph-Like Spaces (Springer, Heidelberg, 2012).
V. V. Zhikov, Algebra Anal. 16 (5), 34 (2004).
S. A. Nazarov, Funct. Anal. Appl. 43 (3), 239 (2009).
S. A. Nazarov, K. Ruotsalainen, J. Taskinen, Journal of Math. Sci. 181 (2), 164 (2012).
F. L. Bakharev and S. A. Nazarov, Sib. Math. J. 56 (4), 575 (2015).
F. L. Bakharev, G. Cardone, S. A. Nazarov, and J. Taskinen, Integr. Equations Oper. Theory 88 (3), 373 (2017).
J. Sanchez Hubert and E. Sanchez-Palencia, Vibration and Coupling of Continuous Systems (Springer-Verlag, Berlin, 1989).
M. Lobo and E. Perez, Math. Models Methods Appl. Sci. 7, 291 (1997).
S. A. Nazarov, Differ. Equations 46 (5), 730 (2010).
J. T. Beale, Commun. Pure Appl. Math. 26, 549 (1973).
A. A. Arsen’ev, Zh. Vychisl. Mat. Mat. Fiz. 16, 718 (1976).
R. R. Gadyl’shin, Mat. Zametki 54 (6), 10 (1993), R. R. Gadyl’shin, Mat. Zametki 55 (1), 20 (1994), R. R. Gadyl’shin, Mat. Zametki 61 (4), 494 (1997).
S. A. Nazarov, J. Math. Sci. 80 (5), 1989 (1996); S. A. Nazarov, J. Math. Sci. 97 (3), 155 (1999).
V. A. Kozlov, V. G. Maz’ya, and A. B. Movchan, Asymptotic Analysis of Fields in Multi-Structures (Clarendon Press, Oxford, 1999).
R. R. Gadyl’shin, Izv. Ross. Akad. Nauk, Ser. Mat. 69 (2), 45 (2005).
P. Joly and S. Tordeux, SIAM J. Multiscale Model. Simul. 5 (1), 304 (2006).
P. Joly and S. Tordeux, Math. Model. Numer. Anal. 42 (2), 193 (2008).
S. A. Nazarov, K. Ruotsalainen, and J. Taskinen, Appl. Anal. 89, 109 (2010).
S. A. Nazarov, Comput. Math. Math. Phys. 56 (5), 864 (2016).
S. A. Nazarov and J. Taskinen, J. Math. Sci. 194 (1), 72 (2013).
A. V. Sobolev and J. Walthoe, Proc. London Math. Soc. 85 (1), 717 (2002).
T. A. Suslina and R. G. Shternberg, Algebra Anal. 13 (2), 159 (2002).
E. Shargorodskii and A. V. Sobolev, J. d’Anal. Math. 91 (1), 63 (2003).
K. Miller, Arch. Rat. Mech. Anal. 54 (2), 105 (1974).
N. D. Filonov, Probl. Mat. Anal. 22, 246 (2001).
M. N. Demchenko, Zap. Nauch. Semin. Peterburg. Otd. Mat. Inst. Ross. Akad. Nauk 393, 803 (2011).
M. S. Agranovich and M. I. Vishik, Usp. Mat. Nauk 19 (3), 53 (1964).
K. Pankrashkin, J. Math. Anal. Appl. 449 (1), 907 (2017).
F. L. Bakharev and S. A. Nazarov, Criteria for the Absence and Existence of Bounded Solutions at the Threshold Frequency in a Junction of Quantum Waveguides. https://arxiv.org/abs/1705.10481.
S. A. Nazarov, Acoust. Phys. 56 (6), 1004 (2010).
S. A. Nazarov, K. Ruotsalainen, and P. Uusitalo, Z. Angew. Math. Mech. 94 (6), 477 (2014).
S. A. Nazarov, Comput. Math. Math. Phys. 54 (8), 1261 (2014).
F. L. Bakharev, S. G. Matveenko, and S. A. Nazarov, St. Petersburg Math. J. 29 (3), 423 (2018).
D. V. Evans, M. Levitin, and D. Vasil’ev, J. Fluid Mech. 261, 21 (1994).
D. S. Jones, Proc. Cambridge Philos. Soc. 49, 668 (1953).
S. A. Nazarov, St. Petersburg Math. J. 28 (3), 377 (2016).
S. G. Mikhlin, Variational Methods in Mathematical Physics (Nauka, Moscow, 1970) [in Russian].
S. A. Nazarov, J. Math. Sci. 195 (5), 676 (2013).
S. A. Nazarov, Dokl. Math. 100 (2), 491 (2019).
N. A. Umov, Equations for Energy Motion in Solids (Tipogr. Ul’rikha i Shul’tse, Odessa, 1874) [in Russian].
L. I. Mandel’shtam, Lectures on Optics, Relativity Theory and Quantum Mechanics. Collection of Scientific Works (USSR Acad. Sci., Moscow, 1947), Vol. 2 [in Russian].
B. R. Vainberg, Usp. Mat. Nauk 21 (6), 115 (1966).
I. I. Vorovich and V. A. Babeshko, Mixed Dynamical Problems of Elasticity Theory for Nonclassical Areas (Nauka, Moscow, 1979) [in Russian].
S. A. Nazarov, Acoust. Phys. 59 (3), 272 (2013).
J. H. Poynting, Philos. Trans. R. Soc. London 175, 343 (1884).
S. A. Nazarov, Sb. Math. 205 (7), 953 (2014).
I. V. Kamotskii and S. A. Nazarov, J. Math. Sci. 111 (4), 3657 (2002).
I. V. Kamotskii and S. A. Nazarov, Sb. Math. 190 (1), 111 (1999); I. V. Kamotskii and S. A. Nazarov, Sb. Math. 190 (2), 205 (1999).
S. A. Nazarov, Funct. Anal. Appl. 40 (2), 97 (2006)
L. Chesnel, and S. A. Nazarov, Commun. Math. Sci. 16 (7), 1779 (2018).
U. Fano, Phys. Rev. 124 (6), 1866 (1961).
S. P. Shipman and S. Venakides, Phys. Rev. E 71 (2), 026611 (2005).
S. P. Shipman and H. Tu, SIAM J. Appl. Math. 72 (1), 216 (2012).
S. P. Shipman and A. T. Welters, J. Math. Phys. 54 (10), 103511 (2013).
R. Wood, Proc. Phys. Soc. London 18, 269 (1902).
W. Seabrook, Doctor Wood, Modern Wizard of the Laboratory (Harcourt Brace, New York, 1941).
A. Hessel and A. A. Oliner, Appl. Opt. 4 (10), 1275 (1965).
S. A. Nazarov, Acoust. Phys. 64 (5), 535 (2018).
A. N. Kolmogorov and S. V. Fomin, Elements of Function Theory and Functional Analysis (Nauka, Moscow, 1976) [in Russian].
S. A. Nazarov and K. M. Ruotsalainen, Z. Anal. Anwend. 35, 211 (2016).
S. A. Nazarov, J. Math. Sci. 172 (4), 555 (2011).
S. A. Nazarov, Acoust. Phys. 58 (6), 633 (2012).
A.-S. Bonnet-Ben Dhia and S. A. Nazarov, Acoust. Phys. 59, 633 (2013).
L. Chesnel and S. A. Nazarov, Inverse Probl. Imaging 10 (6), 977 (2016).
A.-S. Bonnet-Ben Dhia, E. Lunéville, Y. Mbeutcha, and S. A. Nazarov, Math. Methods Appl. Sci. 40 (2), 335 (2017).
P. Duclos and P. Exner, Rev. Math. Phys. 7 (1), 73 (1995).
S. A. Nazarov, Sib. Math. J. 51 (5), 866 (2010).
P. Exner and H. Kovarîk, Quantum Waveguides. Theoretical and Mathematical Physics (Springer, Cham, 2015).
S. A. Nazarov, Algebra Anal. 31 (5), 154 (2019).
S. A. Nazarov, Acoust. Phys. 57 (6), 764 (2011).
S. A. Nazarov, Sb. Math. 206 (6), 782–813 (2015).
T. Kato, Perturbation Theory for Linear Operators (Springer, Berlin, 1966; Mir, Moscow, 1972).
M. M. Vainberg and V. A. Trenogin, The Theory of Solutions Ramification for Nonlinear Equations (Nauka, Moscow, 1969) [in Russian].
S. A. Nazarov, Funkts. Anal. Prilozh. 54 (1), 41 (2020).
L. A. Vainshtein, Diffraction Theory and Factorization Method (Sovetskoe Radio, Moscow, 1966) [in Russian].
A. V. Shanin, SIAM J. Appl. Math. 70, 1201 (2009).
A. I. Korol’kov and A. V. Shanin, Zap. Nauch. Semin. S.-Peterb. Otd. Mat. Inst. Ross. Akad. Nauk 422, 62 (2014).
A. V. Shanin and A. I. Korolkov, in Proc. Progress in Electromagnetics Research Symp. (PIERS) (St. Petersburg, 2017), p. 3521.
A. V. Shanin and A. I. Korolkov, Wave Motion 68, 218 (2017).
S. A. Nazarov, Sib. Math. J. 59 (1), 85 (2018).
S. A. Nazarov, J. Math. Sci. 244 (3), 451–497 (2020).
Funding
This work was supported by the Russian Scientific Foundation (project no. 17-11-01003).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by E. Golyamina
Rights and permissions
About this article
Cite this article
Nazarov, S.A. Anomalies of Acoustic Wave Scattering Near the Cut-off Points of Continuous Spectrum (A Review). Acoust. Phys. 66, 477–494 (2020). https://doi.org/10.1134/S1063771020050115
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063771020050115