Consecutive Patterns: From Permutations to Column-Convex Polyominoes and Back

被引:0
|
作者
Rawlings, Don [1 ]
Tiefenbruck, Mark [2 ]
机构
[1] Calif Polytech State Univ San Luis Obispo, Dept Math, San Luis Obispo, CA 93407 USA
[2] Univ Calif San Diego, Dept Math, La Jolla, CA 92093 USA
来源
ELECTRONIC JOURNAL OF COMBINATORICS | 2010年 / 17卷 / 01期
关键词
ascents; consecutive pattern; column-convex polyomino; descents; levels; maxima; peaks; twin peaks; up-down type; valleys; variation; GENERATING FUNCTIONS; ENUMERATION; WORDS; MAXIMA; FALLS; RISES;
D O I
暂无
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We expose the ties between the consecutive pattern enumeration problems associated with permutations, compositions, column-convex polyominoes, and words. Our perspective allows powerful methods from the contexts of compositions, column-convex polyominoes, and of words to be applied directly to the enumeration of permutations by consecutive patterns. We deduce a host of new consecutive pattern results, including a solution to the (2m+1)-alternating pattern problem on permutations posed by Kitaev.
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页数:33
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