TY - JOUR T1 - A Class of Metric Spaces Which Do Not Coarsely Contain Expanders AU - Lin , Shan JO - Communications in Mathematical Research VL - 3 SP - 284 EP - 288 PY - 2021 DA - 2021/05 SN - 30 DO - http://doi.org/10.13447/j.1674-5647.2014.03.10 UR - https://global-sci.org/intro/article_detail/cmr/18972.html KW - coarse embedding, expander, special metric space. AB -

In this paper, a class of metric spaces which include Hilbert spaces and Hadamard manifolds are defined. And the expanders cannot be coarsely embedded into this class of metric spaces are proved.