大偏差局部极限定理与双条件树和地图的极限
概率论
2024-01-22 v3
摘要
我们首先建立了非降整数值随机游走在时间处于任意值的概率的新局部极限估计,特别涵盖了大偏差区域。这使我们能够推导出此类随机游走在各种区域下以时间的终值为条件的标度极限。我们相信这两者都具有独立意义。然后我们将这些结果应用于Bienaymé-Galton-Watson树的Lukasiewicz路径,该树同时以固定数量的叶子和顶点为条件,从而获得不变性原理,这是理解其大尺度几何的第一步。最后,我们由此推导出随机二分平面地图在同时固定顶点数、边数和面数这一新条件下的标度极限定理。在均匀分布的特殊情况下,我们的结果证实了Fusy & Guitter关于典型距离增长的预测,并进一步表明在所有区域中,标度极限都是著名的布朗地图。
引用
@article{arxiv.2101.01682,
title = {Large deviation Local Limit Theorems and limits of biconditioned Trees and Maps},
author = {Igor Kortchemski and Cyril Marzouk},
journal= {arXiv preprint arXiv:2101.01682},
year = {2024}
}
备注
Compared to V2 we only changed the presentation: several theorems have been merged and are now stated in a unified way; also the previous section on maps has been split into a section on trees and another one on maps only; last the former technical section 4 has moved to Appendix A