Geodesic
The degree of a~cellular map of a~rectangle to a~three-link band
Trudy Instituta matematiki i mehaniki, Trudy Instituta Matematiki i Mekhaniki UrO RAN, Tome 16 (2010) no. 2, pp. 253-257

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It is known that the degree of a simplicial triangulation map in Sperners lemma is equal to 1. It is proved similarly that the degree of a cellular map of a rectangle to a three-link band is equal to 3.
Mots-clés : Sperner's lemma
Keywords: simplicial map, cellular map of a rectangle. 
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     title = {The degree of a~cellular map of a~rectangle to a~three-link band},
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Yu. A. Shashkin. The degree of a~cellular map of a~rectangle to a~three-link band. Trudy Instituta matematiki i mehaniki, Trudy Instituta Matematiki i Mekhaniki UrO RAN, Tome 16 (2010) no. 2, pp. 253-257. http://geodesic.mathdoc.fr/item/TIMM_2010_16_2_a21/