A note on Markov type constants

作者：Ohta Shin ichi^*; Pichot Mikael

来源：ARCHIV DER MATHEMATIK, 2009, 92(1): 80-88.

DOI：10.1007/s00013-008-2672-2

• Markov type
• Alexandrov space
• tripod

We prove that, if a geodesic metric space has Markov type 2 with constant 1, then it is an Alexandrov space of nonnegative curvature. The same technique provides a lower bound of the Markov type 2 constant of a space containing a tripod or a branching point.

• 出版日期2009-1