Generating triangulations on closed surfaces with minimum degree at least 4

被引:7
作者
Nakamoto, A
Negami, S
机构
[1] Osaka Kyoiku Univ, Dept Math, Osaka 5828582, Japan
[2] Yokohama Natl Univ, Fac Educ & Human Sci, Dept Math, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan
关键词
triangulation; minimum degree;
D O I
10.1016/S0012-365X(01)00093-0
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We show that every triangulation on a closed surface, except the sphere, with minimum degree at least 4 can be obtained from an irreducible triangulation by two kinds of local deformations, called 4-splitting and addition of an octahedron and that every triangulation on the sphere can be obtained from the octahedron by them. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:345 / 349
页数:5
相关论文
共 10 条
[1]   GENERATING THE TRIANGULATIONS OF THE PROJECTIVE PLANE [J].
BARNETTE, D .
JOURNAL OF COMBINATORIAL THEORY SERIES B, 1982, 33 (03) :222-230
[2]   ALL 2-MANIFOLDS HAVE FINITELY MANY MINIMAL TRIANGULATIONS [J].
BARNETTE, DW ;
EDELSON, AL .
ISRAEL JOURNAL OF MATHEMATICS, 1989, 67 (01) :123-128
[3]   INDUCTIVE DEFINITION OF 2 RESTRICTED CLASSES OF TRIANGULATIONS [J].
BATAGELJ, V .
DISCRETE MATHEMATICS, 1984, 52 (2-3) :113-121
[4]   Irreducible triangulations of surfaces [J].
Gao, Z ;
Richter, RB ;
Seymour, PD .
JOURNAL OF COMBINATORIAL THEORY SERIES B, 1996, 68 (02) :206-217
[5]  
GAO Z, 9107 CORR U WAT
[6]   Diagonal flips in triangulations on closed surfaces with minimum degree at least 4 [J].
Komuro, H ;
Nakamoto, A ;
Negami, S .
JOURNAL OF COMBINATORIAL THEORY SERIES B, 1999, 76 (01) :68-92
[7]   Irreducible triangulations of the Klein bottle [J].
Lawrencenko, S ;
Negami, S .
JOURNAL OF COMBINATORIAL THEORY SERIES B, 1997, 70 (02) :265-291
[8]  
Lawrencenko Serge, 1990, J SOVIET MATH, V51, P2537
[9]   NOTE ON IRREDUCIBLE TRIANGULATIONS OF SURFACES [J].
NAKAMOTO, A ;
OTA, K .
JOURNAL OF GRAPH THEORY, 1995, 20 (02) :227-233
[10]  
Steinitz E., 1934, Vorlesungen uber die Theorie der Polyeder