Convex functions and barycenter on CAT(1)-Spaces of small radii
Convex functions and barycenter on CAT(1)-Spaces of small radii
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DOI:
10.2969/jmsj/06831297
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发表时间:
2016-07
影响因子:
0.7
通讯作者:
Takumi Yokota
中科院分区:
文献类型:
--
作者:
Takumi Yokota
We use the convexity of a certain function discovered by W. Kendall on small metric balls in CAT(1)-spaces to show that any probability measure on a complete CAT(1)-space of small radius admits a unique barycenter. We also present various properties of barycenter on those spaces. This extends the results previously known for CAT(0)-spaces and CAT(1)-spaces of small diameter.