Abstract.
Let x and y be orthogonal coordinates of a point M (u = ax + iby or ax + ɛ by) of a plane where as x′ and y′ are orthogonal coordinates of a point M′(V = ax′ + iby′ or ax′ + ɛ by′) inverse of M in the elliptic hyperbolic inversion \(u\bar v = k{\text{ or }}(u - \alpha )(\bar v - \alpha ) = k'\) (k and k′ positive) \(\bar v \) designating the conjugate of v while i and ɛ are Clifford numbers such that i 2 = −1 and ɛ2 = 1 (a and b are real). O is the origin of axises. Ox is the axis of inversions. We study particularly the product of two inversions.
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Casanova, G. Produit d’inversions elliptiques ou hyperboliques. AACA 14, 175–178 (2004). https://doi.org/10.1007/s00006-004-0003-7
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DOI: https://doi.org/10.1007/s00006-004-0003-7