Hexagonal Geodesic 3-Webs
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Oxford Univ Press
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Oxford University Press (OUP)
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Abstract
We prove that a surface carries a hexagonal 3-web of geodesics if and only if the geodesic flow on the surface admits a cubic 1st integral and show that the system of partial differential equations, governing metrics on such surfaces, is integrable by generalized hodograph transform method. We present some new local examples of such metrics, discuss known ones, and establish an analogue of the celebrated Graf and Sauer theorem for Darboux superintegrable metrics.
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English
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International Mathematics Research Notices. Oxford: Oxford Univ Press, v. 2021, n. 15, p. 11585-11617, 2021.
