Found her on the Senegal Women in Red page: Wikipedia:WikiProject Women in Red/Missing articles by nationality/Senegal
According to that page, Thiam is a Senegalese mathematician, was born in Senegal in 1968, and this is her Wikidata page: https://www.wikidata.org/wiki/Q20558276
Worldcat: https://www.worldcat.org/identities/viaf-208274102/
Welsh page (stub): https://cy.wikipedia.org/wiki/M%27Bayang_Thiam
Haitian Creole page (stub/in development): https://ht.wikipedia.org/wiki/M%27Bayang_Thiam