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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Automatica (Oxf). 2018 Dec 10;100:336–348. doi: 10.1016/j.automatica.2018.11.012

Figure 1:

Figure 1:

Schematic of limit cycle dynamics for arbitrary states x1 and x2. (A) The limit cycle Г in state space. (B) Schematic of trajectories γ and θ These points may be assigned identical phases (ϕa = ϕ0), as the trajectories originating at these points converge asymptotically.