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    БСмСйство Π½Π΅Π³Ρ€ΡƒΠ±Ρ‹Ρ… Ρ†ΠΈΠΊΠ»ΠΎΠ² Π² систСмС Π΄Π²ΡƒΡ… связанных Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΎΡ€ΠΎΠ² с Π·Π°ΠΏΠ°Π·Π΄Ρ‹Π²Π°Π½ΠΈΠ΅ΠΌ

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    In this paper, we consider the nonlocal dynamics of the model of two coupled oscillators with delayed feedback. This model has the form of a system of two differential equations with delay. The feedback function is non-linear, finite and smooth. The main assumption in the problem is that the coupling between the generators is sufficiently small. With the help of asymptotic methods we investigate the existence of relaxation periodic solutions of a given system. For this purpose, a special set is constructed in the phase space of the original system. Then we build an asymptotics of the solutions of the given system with initial conditions from this set. Using this asymptotics, a special mapping is constructed. Dynamics of this map describes the dynamics of the original problem in general. It is proved that all solutions of this mapping are non-rough cycles of period two. As a result, we formulate conditions for the coupling parameter such that the initial system has a two-parameter family of nonrough inhomogeneous relaxation periodic asymptotic (with respect to the residual) solutions.Β Π’ Π΄Π°Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Π΅ рассматриваСтся нСлокальная Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΌΠΎΠ΄Π΅Π»ΠΈ Π΄Π²ΡƒΡ… связанных Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΎΡ€ΠΎΠ² с Π·Π°ΠΏΠ°Π·Π΄Ρ‹Π²Π°ΡŽΡ‰Π΅ΠΉ ΠΎΠ±Ρ€Π°Ρ‚Π½ΠΎΠΉ связью. Π­Ρ‚Π° модСль ΠΈΠΌΠ΅Π΅Ρ‚ Π²ΠΈΠ΄ систСмы Π΄Π²ΡƒΡ… Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹Ρ… ΡƒΡ€Π°Π²Π½Π΅Π½ΠΈΠΉ с Π·Π°ΠΏΠ°Π·Π΄Ρ‹Π²Π°Π½ΠΈΠ΅ΠΌ. Ѐункция ΠΎΠ±Ρ€Π°Ρ‚Π½ΠΎΠΉ связи являСтся Π½Π΅Π»ΠΈΠ½Π΅ΠΉΠ½ΠΎΠΉ, Ρ„ΠΈΠ½ΠΈΡ‚Π½ΠΎΠΉ ΠΈ Π³Π»Π°Π΄ΠΊΠΎΠΉ. Π“Π»Π°Π²Π½Ρ‹ΠΌ ΠΏΡ€Π΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ΠΌ Π² Π·Π°Π΄Π°Ρ‡Π΅ являСтся Ρ‚ΠΎ, Ρ‡Ρ‚ΠΎ связь ΠΌΠ΅ΠΆΠ΄Ρƒ Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΎΡ€Π°ΠΌΠΈ достаточно малая. АсимптотичСскими ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌΠΈ исслСдуСтся сущСствованиС рСлаксационных пСриодичСских Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ Π΄Π°Π½Π½ΠΎΠΉ систСмы. Для этого Π² Ρ„Π°Π·ΠΎΠ²ΠΎΠΌ пространствС исходной систСмы выдСляСтся ΡΠΏΠ΅Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠ΅ мноТСство. Π—Π°Ρ‚Π΅ΠΌ находится асимптотика Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ Π΄Π°Π½Π½ΠΎΠΉ систСмы с Π½Π°Ρ‡Π°Π»ΡŒΠ½Ρ‹ΠΌΠΈ условиями ΠΈΠ· этого мноТСства. Π‘ ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ этой асимптотики строится ΡΠΏΠ΅Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠ΅ ΠΎΡ‚ΠΎΠ±Ρ€Π°ΠΆΠ΅Π½ΠΈΠ΅, ΠΎΠΏΠΈΡΡ‹Π²Π°ΡŽΡ‰Π΅Π΅ Π² Π³Π»Π°Π²Π½ΠΎΠΌ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΡƒ исходной Π·Π°Π΄Π°Ρ‡ΠΈ. ДоказываСтся, Ρ‡Ρ‚ΠΎ всС Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Π΄Π°Π½Π½ΠΎΠ³ΠΎ отобраТСния ΡΠ²Π»ΡΡŽΡ‚ΡΡ Π½Π΅Π³Ρ€ΡƒΠ±Ρ‹ΠΌΠΈ Ρ†ΠΈΠΊΠ»Π°ΠΌΠΈ ΠΏΠ΅Ρ€ΠΈΠΎΠ΄Π° Π΄Π²Π°. Π’ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ удаСтся ΡΡ„ΠΎΡ€ΠΌΡƒΠ»ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ условия Π½Π° ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ связи, ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… исходная систСма ΠΈΠΌΠ΅Π΅Ρ‚ двупарамСтричСскоС сСмСйство Π½Π΅Π³Ρ€ΡƒΠ±Ρ‹Ρ… Π½Π΅ΠΎΠ΄Π½ΠΎΡ€ΠΎΠ΄Π½Ρ‹Ρ… рСлаксационных пСриодичСских асимптотичСских ΠΏΠΎ нСвязкС Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ.

    A Family of Non-rough Cycles in a System of Two Coupled Delayed Generators

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    In this paper, we consider the nonlocal dynamics of the model of two coupled oscillators with delayed feedback. This model has the form of a system of two differential equations with delay. The feedback function is non-linear, finite and smooth. The main assumption in the problem is that the coupling between the generators is sufficiently small. With the help of asymptotic methods we investigate the existence of relaxation periodic solutions of a given system. For this purpose, a special set is constructed in the phase space of the original system. Then we build an asymptotics of the solutions of the given system with initial conditions from this set. Using this asymptotics, a special mapping is constructed. Dynamics of this map describes the dynamics of the original problem in general. It is proved that all solutions of this mapping are non-rough cycles of period two. As a result, we formulate conditions for the coupling parameter such that the initial system has a two-parameter family of nonrough inhomogeneous relaxation periodic asymptotic (with respect to the residual) solutions

    A Family of Non-rough Cycles in a System of Two Coupled Delayed Generators

    No full text
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