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Minimal quadrangulations of nonorientable surfaces

✍ Scribed by Nora Hartsfield; Gerhard Ringel

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
360 KB
Volume
50
Category
Article
ISSN
0097-3165

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πŸ“œ SIMILAR VOLUMES

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## Abstract It has been shown that every quadrangulation on any nonspherical orientable closed surface with a sufficiently large representativity has chromatic number at most 3. In this paper, we show that a quadrangulation __G__ on a nonorientable closed surface __N~k~__ has chromatic number at le

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In this paper, we shall show that any two quadrangulations on any closed surface can be transformed into each other by diagonal slides and diagonal rotations if they have the same and sufficiently large number of vertices and if the homological properties of both quadrangulations coincide.