Email this article Finite-Dimensional Approximations of the Steklov–Poincaré Operator in Periodic Elastic Waveguides
- Authors: Nazarov S.A.1,2,3
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Affiliations:
- Faculty of Mathematics and Mechanics, St. Petersburg State University
- Peter the Great St. Petersburg State Polytechnic University
- Institute for Problems in Mechanical Engineering, Russian Academy of Sciences
- Issue: Vol 63, No 7 (2018)
- Pages: 307-311
- Section: Mechanics
- URL: https://journals.rcsi.science/1028-3358/article/view/192390
- DOI: https://doi.org/10.1134/S1028335818070108
- ID: 192390
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Abstract
For anisotropic elastic waveguides with cylindrical or periodic outlets to infinity, artificial integro-differential conditions are developed at the end face of a truncated waveguide, which simulate the Steklov–Poincaré operator for scalar problems. Asymptotically sharp error estimates are derived in the definition of both the elastic fields themselves in the waveguide and the corresponding scattering coefficients.
About the authors
S. A. Nazarov
Faculty of Mathematics and Mechanics, St. Petersburg State University; Peter the Great St. Petersburg State Polytechnic University; Institute for Problems in Mechanical Engineering, Russian Academy of Sciences
Author for correspondence.
Email: srgnazarov@yahoo.co.uk
Russian Federation, Staryi PetergofSt. Petersburg, 198504; St. Petersburg, 195251; St. Petersburg, 199178
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