Circular-arc conjecture for minimizers of the Gamma-limit functional

Assume that K\mathcal{K} is not central. Let MeinNM ein\mathbb{N} be as in the symmetry condition, and let (Δθ)min(\Delta\theta)_{\min} be the minimum total angle compatible with K\mathcal{K}. Let vIKv_I^*\in\overline{\mathcal{K}} be a minimizer of the \Gamma-limit functional A~0α\overline{\widetilde{\mathcal{A}}_0^\alpha}. Circular-arc conjecture. If (Δθ)min/M<2π(\Delta\theta)_{\min}/M<2\pi, then the trajectory vI([0,T])v_I^*([0,T]) is composed of circular arcs centered at the origin and passing through some rotation axes, which are swept with uniform motion. The conjecture predicts the structure of minimizers in the noncentral-cone case for α(1,2)\alpha\in(1,2); the supplied text does not state whether it has been proved or disproved.

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Primary source

Marco Fenucci and Giovanni F. Gronchi, “Symmetric constellations of satellites moving around a central body of large mass”, arXiv:2003.04580 (2021).

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