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This article is cited in 8 scientific papers (total in 8 papers)
Quasitravelling waves
L. A. Beklaryan Central Economics and Mathematics Institute, RAS
Abstract:
A finite difference analogue of the wave equation with potential perturbation is investigated, which simulates the behaviour of an infinite rod under the action of an external longitudinal force field. For a homogeneous rod, describing solutions of travelling wave type is equivalent to describing the full space of classical solutions to an induced one-parameter family of functional differential equations of point type, with the characteristic of the travelling wave as parameter. For an inhomogeneous rod, the space of solutions of travelling wave type is trivial, and their ‘proper’ extension is defined as solutions of ‘quasitravelling’ wave type. By contrast to the case of a homogeneous rod, describing the solutions of quasitravelling wave type is equivalent to describing the quotient of the full space of impulsive solutions to an induced one-parameter family of point-type functional differential equations by an equivalence relation connected with the definition of solutions of quasitravelling wave
type. Stability of stationary solutions is analyzed.
Bibliography: 9 titles.
Keywords:
functional differential equations, scale of function spaces, impulsive solutions, wave equation, travelling waves.
Received: 08.06.2009 and 02.06.2010
Citation:
L. A. Beklaryan, “Quasitravelling waves”, Sb. Math., 201:12 (2010), 1731–1775
Linking options:
https://www.mathnet.ru/eng/sm7583https://doi.org/10.1070/SM2010v201n12ABEH004129 https://www.mathnet.ru/eng/sm/v201/i12/p21
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Abstract page: | 481 | Russian version PDF: | 181 | English version PDF: | 5 | References: | 46 | First page: | 15 |
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