A common name, so the particular bearer of it who generated this entry is unknown. The most likely candidate is Diophantos of Alexandria, the celebrated mathematician (OCD3 483). His works surviving in Greek are normally cited in page numbers from the Teubner edition by Tannery in 2 volumes (1883, 1885). The important new edition by Roshdi Rashed in progress since 1984 in the Budé series, with facing-page translation in French, is also based on the ancient Arabic translation of his work. The history of the relationship between Greek and Arabic algebra is the focus of important contemporary work in rewriting the history of mathematics.
Diophantos of Alexandria is mentioned in Suda at delta 1491, where a joke at his expense is recounted. Hypatia's commentary on his work is mentioned at upsilon 166. There are three others of this name mentioned in Suda, lambda 486, mu 462, pi 1617, and notes