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arXiv 1003.1322math.COmath.PR
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无标号有根随机树的形状

The Shape of Unlabeled Rooted Random Trees

Michael Drmota, Bernhard Gittenberger

摘要:

我们考虑了无标号有根随机树的水平节点数,并证明了由适当尺度的水平大小给出的随机过程弱收敛于标准布朗漂移的局部时。此外,我们还计算了这些树的平均高度和高度分布。这些结果扩展了现有的结果条件高尔顿-沃森树和森林的情况下,无标签的有根树,并表明,他们在这方面的行为基本上像一个条件高尔顿-沃森过程。

英文摘要:

We consider the number of nodes in the levels of unlabelled rooted random trees and show that the stochastic process given by the properly scaled level sizes weakly converges to the local time of a standard Brownian excursion. Furthermore we compute the average and the distribution of the height of such trees. These results extend existing results for conditioned Galton-Watson trees and forests to the case of unlabelled rooted trees and show that they behave in this respect essentially like a conditioned Galton-Watson process.

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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