arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1806.06925math.CO
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有根树中路径的选择

Lengths of paths in rooted trees

Keith Copenhaver

摘要:

给出了各种有根树结构中多种类型路的生成函数的公式。我们计算各种类型的垂直路径的生成函数的$k$阶矩。在两个特定的树族中,我们找到了期望值及其渐近值的精确闭公式。这些闭公式中的一些非常简单。

英文摘要:

We provide formulas for generating functions of many types of paths in various rooted tree structures. We compute the $k$th moment of the generating functions for various types of vertical paths. In two specific familes of trees we find exact closed formulas for expectations and their asymptotic values. Some of these closed formulas are surprisingly simple.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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