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Diagonal transformations in quadrangulations of surfaces

โœ Scribed by Nakamoto, Atsuhiro


Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
546 KB
Volume
21
Category
Article
ISSN
0364-9024

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โœฆ Synopsis


In this paper, it will be shown that any two bipartite quadrangulations of any closed surface are transformed into each other by two kinds of transformations, called the diagonal slide and the diagonal rotation, up to homeomorphism, if they have the same and sufficiently large number of vertices.


๐Ÿ“œ SIMILAR VOLUMES


Diagonal Transformations and Cycle Parit
โœ Atsuhiro Nakamoto ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 255 KB

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.

Chromatic numbers of quadrangulations on
โœ Dan Archdeacon; Joan Hutchinson; Atsuhiro Nakamoto; Seiya Negam; Katsuhiro Ota ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 138 KB

## 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

Generating quadrangulations of surfaces
โœ Nakamoto, Atsuhiro ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 171 KB

In this article, we show that all quadrangulations of the sphere with minimum degree at least 3 can be constructed from the pseudo-double wheels, preserving the minimum degree at least 3, by a sequence of two kinds of transformations called "vertex-splitting" and "4-cycle addition." We also consider

Diagonal Flips of Triangulations on Clos
โœ Richard Brunet; Atsuhiro Nakamoto; Seiya Negami ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 445 KB

Consider a class P of triangulations on a closed surface F 2 , closed under vertex splitting. We shall show that any two triangulations with the same and sufficiently large number of vertices which belong to P can be transformed into each other, up to homeomorphism, by a finite sequence of diagonal