论文标题
在带有三片叶子的定向平面树上
On oriented planar trees with three leaves
论文作者
论文摘要
此基本说明提出了候选人在嵌入了庞加莱磁盘中的生根地理树的模量空间上有趣的连续分段光滑的“ Riemannian”指标。相关的离题观察到了迄今未识别的Abelian拓扑组结构在实际投影线上的存在。
This elementary note proposes candidates for interesting continuous piecewise-smooth `Riemannian' metrics on the moduli spaces of rooted geodesic trees embedded in the Poincaré disk. A related digression observes the existence of an apparently hitherto unrecognized abelian topological group structure on the real projective line.
