Geodesic
Projective equivalence of smooth functions on a plane
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 12 (2013), pp. 69-71 Cet article a éte moissonné depuis la source Math-Net.Ru

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In this paper we find differential invariants for the action of the projective group on the space of smooth functions on the plane and propose a classification of orbits of this action.
Keywords: projective group, differential invariant
Mots-clés : jet space. 
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     title = {Projective equivalence of smooth functions on a~plane},
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P. V. Bibikov. Projective equivalence of smooth functions on a plane. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 12 (2013), pp. 69-71. http://geodesic.mathdoc.fr/item/IVM_2013_12_a5/

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