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Counting rooted near-triangulations on the sphere

โœ Scribed by Fengming Dong; Yanpei Liu


Book ID
103056242
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
513 KB
Volume
123
Category
Article
ISSN
0012-365X

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N-flips in even triangulations on the sp
โœ Atsuhiro Nakamoto; Tadashi Sakuma; Yusuke Suzuki ๐Ÿ“‚ Article ๐Ÿ“… 2006 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 127 KB ๐Ÿ‘ 1 views

A triangulation is said to be even if each vertex has even degree. For even triangulations, define the N-flip and the P 2 -flip as two deformations preserving the number of vertices. We shall prove that any two even triangulations on the sphere with the same number of vertices can be transformed int