On periodic solutions of some equations of mathematical physics. (English) Zbl 0249.35057


35L99 Hyperbolic equations and hyperbolic systems
35L35 Initial-boundary value problems for higher-order hyperbolic equations
35B10 Periodic solutions to PDEs
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[1] O. Vejvoda: Periodic solution of a linear and weakly nonlinear wave equation in one dimension. Czech. Mat. Journ. 14 (89), 1964. · Zbl 0178.45302
[2] M. Sova: Abstract semilinear equations with small nonlinearities. CMUC, no 4, p. 685,1971. · Zbl 0235.47034
[3] N. Krylová: Periodic solutions of hyperbolic partial differential equation with quadratic dissipative term. Czech. Mat. Journ. 20 (95), 1970. · Zbl 0214.10402
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