picture of me. Daniel R. Grayson, Professor Emeritus, retired
Email: danielrichardgrayson@gmail.com
Public keys: GnuPG here, GnuPG at keybase, openssh.
Google plus: DanielRGrayson; Facebook: dan.grayson; Skype: dangrayson
Github: DanGrayson
Math Reviews: 76410; arXiv: grayson_d_1
ORCID: 0000-0002-7237-4592; Zentrallblatt: grayson.daniel-r
Math overflow: dan-grayson; Stack overflow: daniel-r-grayson
微信 (WeChat): DanGrayson; 中文姓名: 高单
Cell phone: +1-217-377-0458; Home phone: +1-217-367-6384
Home postal address: 2409 S. Vine St., Urbana, Illinois 61801, USA