具有边界或自避免环的四边形中的距离统计
Distance statistics in quadrangulations with a boundary, or with a self-avoiding loop
摘要:
我们考虑四边形与边界,并推导出显式表达式的生成函数,这些地图与标记的顶点在规定的距离从边界,或两个边界顶点在规定的相互距离的地图。对于大的地图,这会产生明确的公式,在各种遇到的缩放制度:一个小的边界,一个密集的边界和临界边界制度的体积边界和边界-边界边界的缩放。临界边界制度的特点是由一个单参数家庭的尺度函数之间的布朗映射和布朗连续随机树插值。我们讨论的情况下,通用和自我避免的边界,这是共享相同的通用缩放限制。我们最后解决的问题,批量循环距离统计的背景下,配备了一个自我避免循环的平面四边形。在这里,再次发现了一个新的家庭的标度函数描述的关键回路。
英文摘要:
We consider quadrangulations with a boundary and derive explicit expressions for the generating functions of these maps with either a marked vertex at a prescribed distance from the boundary, or two boundary vertices at a prescribed mutual distance in the map. For large maps, this yields explicit formulas for the bulk-boundary and boundary-boundary correlators in the various encountered scaling regimes: a small boundary, a dense boundary and a critical boundary regime. The critical boundary regime is characterized by a one-parameter family of scaling functions interpolating between the Brownian map and the Brownian Continuum Random Tree. We discuss the cases of both generic and self-avoiding boundaries, which are shown to share the same universal scaling limit. We finally address the question of the bulk-loop distance statistics in the context of planar quadrangulations equipped with a self-avoiding loop. Here again, a new family of scaling functions describing critical loops is discovered.
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