Geodesic
Immersions of graphs into projective plane
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 5 (2017), pp. 61-65 Cet article a éte moissonné depuis la source Math-Net.Ru

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Immersions of graphs to the projective plane are studied. A classification of immersions up to regular homotopy is obtained. A complete invariant of immersions up to regular homotopy is constructed. The case of graphs immersions to any compact surface different from the projective plane was known. 
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     author = {M. A. Ivashkovsky},
     title = {Immersions of graphs into projective plane},
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     year = {2017},
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     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2017_5_a11/}
}
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M. A. Ivashkovsky. Immersions of graphs into projective plane. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 5 (2017), pp. 61-65. http://geodesic.mathdoc.fr/item/VMUMM_2017_5_a11/

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