Impact of quadratic non-linearity on the dynamics of periodic solutions of a wave equation
Journal Article
·
· Sbornik. Mathematics
- P.G. Demidov Yaroslavl State University, Yaroslavl (Russian Federation)
- M.V. Lomonosov Moscow State University, Moscow (Russian Federation)
For the non-linear telegraph equation with homogeneous Dirichlet or Neumann conditions at the end-points of a finite interval the question of the existence and the stability of time-periodic solutions bifurcating from the zero equilibrium state is considered. The dynamics of these solutions under a change of the diffusion coefficient (that is, the coefficient of the second derivative with respect to the space variable) is investigated. For the Dirichlet boundary conditions it is shown that this dynamics substantially depends on the presence - or the absence - of quadratic terms in the non-linearity. More precisely, it is shown that a quadratic non-linearity results in the occurrence, under an unbounded decrease of diffusion, of an infinite sequence of bifurcations of each periodic solution. En route, the related issue of the limits of applicability of Yu.S. Kolesov's method of quasinormal forms to the construction of self-oscillations in singularly perturbed hyperbolic boundary value problems is studied.
- OSTI ID:
- 21205665
- Journal Information:
- Sbornik. Mathematics, Journal Name: Sbornik. Mathematics Journal Issue: 1 Vol. 193; ISSN 1064-5616
- Country of Publication:
- United States
- Language:
- English
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