Michael Walker (mathematician)

{{short description|English mathematician}}

{{Use dmy dates|date=April 2022}}

{{Infobox scientist

| honorific_prefix =

| name = Michael Walker

| image =

| birth_name =

| birth_date = {{birth date|1947|01|14|df=y}}

| birth_place =

| death_date = {{death date and age|df=yes|2018|09|27|1947|01|14}}

| death_place =

| nationality = British

| fields = Mathematics

| workplaces = King's College London
University of Tübingen

| alma_mater = Royal Holloway, University of London

}}

Michael Walker {{postnominals|OBE}} (14 January 1947 – 27 September 2018) was an English mathematician who was instrumental in developing the standards that apply to mobile telecommunications and particularly in respect of the SIM card.{{cite web|url=https://www.etsi.org/newsroom/news/1384-2018-10-homage-an-homage-to-professor-michael-walker-obe|title=An homage to Professor Michael Walker OBE|accessdate=3 January 2021|website=etsi.org}}{{cite web|url=https://www.thetimes.com/world/us-world/article/professor-michael-walker-obituary-56qb7zxfn|title=Professor Michael Walker obituary|date=2 November 2018|access-date=7 November 2018|website=The Times}}{{cite web|url=https://www.alacrityfoundation.co.uk/team/trustees/michael-walker/|title=Prof Michael Walker, OBE - Alacrity Foundation|website=Alacrityfoundation.co.uk|accessdate=7 November 2018|archive-url=https://web.archive.org/web/20181108025712/https://www.alacrityfoundation.co.uk/team/trustees/michael-walker/|archive-date=8 November 2018|url-status=dead}}{{cite web|url=https://www.cpp.edu/~wtsi/wts/Previous%20Conferences/WTS2016/Speakers/MichaelWalker.html|title=Professor Michael Walker|website=Cpp.edu|accessdate=9 November 2018|archive-date=14 December 2019|archive-url=https://web.archive.org/web/20191214112013/https://www.cpp.edu/~wtsi/wts/Previous%20Conferences/WTS2016/Speakers/MichaelWalker.html|url-status=dead}}