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4 - Asymptotic Stability of Stationary Orbits and Solitons

Published online by Cambridge University Press:  17 September 2021

Alexander Komech
Affiliation:
Universität Wien, Austria
Elena Kopylova
Affiliation:
Universität Wien, Austria
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Summary

We explain in detail the strategy of Buslaev--Perelman--Sulem (BPS): symplectic projection of a trajectory on a solitary manifold andmodulation equations for the projection and time decay for a transversal component using the Poincar\'e normal form and Fermi Golden Rule for the transversal dynamics. We present an extensive list of results onasymptotic stability of stationary orbitsand solitons that rely on the BPS strategy and its generalizations byS. Cuccagna, Y. Martel, F. Merle, T. Mizumachi, K. Nakanishi, I. Rodnianski,W. Schlag,I. M. Sigal, A. Soffer,R. L. Pego,T. P. Tsai,M. I. Weinstein, H. T. Yau, and others. We also mention the results on stability and instability ofself-similar, spherically symmetric solutions and rotating Kerr solutions ofequations of the General Theory of Relativity by T. Harada, C. E. Kenig, H. Maeda,F. Merle, W. Schlag, and others. Moreover, we illustrate the BPS strategyin the simplest modelof a 1D Schrödinger equation coupled to a nonlinear oscillator, giving complete proofs with all details.

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Publisher: Cambridge University Press
Print publication year: 2021

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