## 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
โฆ LIBER โฆ
Chromatic Numbers and Cycle Parities of Quadrangulations on Nonorientable Closed Surfaces
โ Scribed by Atsuhiro Nakamoto; Seiya Negami; Katsuhiro Ota
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 543 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1571-0653
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