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Centro-affine invariants and the canonical Lorentz metric on the space of centered ellipses - MaRDI portal

Centro-affine invariants and the canonical Lorentz metric on the space of centered ellipses (Q2358902)

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Centro-affine invariants and the canonical Lorentz metric on the space of centered ellipses
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    Centro-affine invariants and the canonical Lorentz metric on the space of centered ellipses (English)
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    16 June 2017
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    The author gives a centroaffine analogue of the approach to conformal invariants of curves in the sphere introduced by \textit{R. Langevin} and \textit{J. O'Hara} [Comment. Math. Helv. 85, No. 2, 273--312 (2010; Zbl 1213.53015)] using the canonical pseodu Riemannian metric on the space of circles.
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    centroaffine invariant
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    osculating ellipse
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    Lorentz metric
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    null curve
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