S.A. Kashchenko, "Dynamics of Self-Excited Generators with Diverse Nonlinear Delayed Feedbacks," Russian Journal of Mathematical Physics volume 27, pp. 332–351 (2020)

Abstract:

A special asymptotic large parameter analysis is used to study the attractors of self-excited generators with different nonlinear delay elements. Asymptotic formulas for stable relaxation cycles and more complex attractors are derived.

DOI https://doi.org/10.1134/S106192082003005X