EXTREMAL GRAPHS WITHOUT 3-CYCLES OR 4-CYCLES

被引:39
|
作者
GARNICK, DK
KWONG, YHH
LAZEBNIK, F
机构
[1] SUNY COLL FREDONIA,DEPT MATH & COMP SCI,FREDONIA,NY 14063
[2] UNIV DELAWARE,DEPT MATH SCI,NEWARK,DE 19718
关键词
D O I
10.1002/jgt.3190170511
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We derive bounds for f(upsilon), the maximum number of edges in a graph on upsilon vertices that contains neither three-cycles nor four-cycles. Also, we give the exact value of f(upsilon) for all upsilon up to 24 and constructive lower bounds for all upsilon up to 200. (C) 1993 John Wiley & Sons, Inc.
引用
收藏
页码:633 / 645
页数:13
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