Stable inversion configurations for odd numbers of weighted rays

From papers

Let m=2k+1m=2k+1, let c1,,cmc_1,\ldots,c_m be specified weights, let γ1,,γm\gamma_1,\ldots,\gamma_m denote ray directions, and let S\mathcal{S} be the corresponding star transform. A configuration has a stable inversion when S\mathcal{S} does not contain singular directions of Type 2. Stable inversion configuration conjecture. For any set of specified weights c1,,cmc_1,\ldots,c_m, there exist γ1,,γm\gamma_1,\ldots,\gamma_m such that S\mathcal{S} does not contain singular directions of Type 2; equivalently, for any set of weights there are configurations of S\mathcal{S} with a stable inversion. This extends the established result for m=3m=3 to odd m>3m>3; the source states that the generalization is technically more complicated and is intended for future work.

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Primary source

Gaik Ambartsoumian and Mohammad Javad Latifi Jebelli, “Inversion and Symmetries of the Star Transform”, arXiv:2005.01918 (2021).

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