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Zapiski Nauchnykh Seminarov POMI, 2015, Volume 438, Pages 46–72
(Mi znsl6183)
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Evolution of wave field jumps near caustics (elementary approach)
M. I. Belishevab, A. F. Vakulenkoa, A. Ya. Kazakovcd a St. Petersburg Department of Steklov Mathematical Institute of Russian Academy of Sciences, St. Petersburg, Russia
b St. Petersburg State University, St. Petersburg, Russia
c St. Petersburg State University of Technology and Design, St. Petersburg, Russia
d St. Petersburg State University of Aerospace Instrumentation, St. Petersburg, Russia
Abstract:
The Poisson formula solving a $3$-dim Cauchy problem for the wave equation is applied to study behavior of the wave field singularities (jumps) near caustics in the $2$-dim and $3$-dim cases. The approach of quite elementary character enables one to describe the focusing effects in detail.
Key words and phrases:
time-domain wave fields, propagation of jumps, singularities near caustics.
Received: 12.10.2015
Citation:
M. I. Belishev, A. F. Vakulenko, A. Ya. Kazakov, “Evolution of wave field jumps near caustics (elementary approach)”, Mathematical problems in the theory of wave propagation. Part 45, Zap. Nauchn. Sem. POMI, 438, POMI, St. Petersburg, 2015, 46–72; J. Math. Sci. (N. Y.), 224:1 (2017), 27–46
Linking options:
https://www.mathnet.ru/eng/znsl6183 https://www.mathnet.ru/eng/znsl/v438/p46
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