An alternative proof of Berg and Nikolaev’s characterization of CAT(0)-spaces via quadrilateral inequality
An alternative proof of Berg and Nikolaev’s characterization of CAT(0)-spaces via quadrilateral inequality
复制标题
Berg 和 Nikolaev 通过四边形不等式表征 CAT(0) 空间的另一种证明
DOI:
10.1007/s00013-009-0057-9
复制
发表时间:
2009
影响因子:
0.6
通讯作者:
Takashi Sato
中科院分区:
文献类型:
--
作者:
Takashi Sato
We give a short alternative proof of Berg and Nikolaev’s recent theorem on a characterization of CAT(0)-spaces via the quadrilateral inequality.
DOI:
--
发表时间:
2009
期刊:
Arch. Math. (Basel) 92
影响因子:
--
作者:
Pichot;Michael;太田慎一
通讯作者:
太田慎一