[2] viXra:1808.0419 submitted on 2018-08-21 07:11:38, (42 unique-IP downloads)
Authors: Xin Li, Xiaohong Zhang, Choonkil Park
Category: General Mathematics
[1] viXra:1803.0583 submitted on 2018-03-23 08:17:19, (43 unique-IP downloads)
Authors: Xin Li, Xiaohong Zhang
Category: General Mathematics