Literature cited
G. P. Pelyukh and A. N. Sharkovskii, Introduction to the Theory of Functional Equations [in Russian], Naukova Dumka, Kiev (1974).
G. P. Pelyukh and A. N. Sharkovskii, “The general solution of systems of functional equations in the neighborhood of a singularity,” in: Functional and Differential-Difference Equations [in Russian], Inst. Mat. Akad. Nauk Ukr. SSR, Kiev (1974), pp. 100–109.
G. P. Pelyukh, “The general solution of a class of systems of nonlinear functional equations,” in: Approximate and Qualitative Methods in the Theory of Differential and Differential-Functional Equations [in Russian], Int. Mat. Akad. Nauk Ukr. SSR, Kiev (1979). pp. 49–53.
G. P. Pelyukh, “Systems of nonlinear functional equations in the neighborhood of singularities,” in: The Study of Differential and Differential-Difference Equations [in Russian], Int. Mat. Akad. Nauk Ukr. SSR, Kiev (1980), pp. 88–106.
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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 35, No. 4, pp. 516–519, July–August, 1983.
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Pelyukh, G.P. General solution of systems of nonlinear functional equations in neighborhoods of singularities. Ukr Math J 35, 436–439 (1983). https://doi.org/10.1007/BF01093099
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DOI: https://doi.org/10.1007/BF01093099