Victor Ya. Bunyakovsky
Victor Yakovlevich Bunyakovsky (Russian: Виктор Яковлевич Буняковский; December 16 [O.S. December 4] 1804, Bar, Ukraine – December 12 [O.S. November 30] 1889, St. Petersburg) was a Russian mathematician, member and later vice president of the Petersburg Academy of Sciences.
He worked in theoretical mechanics and number theory (see: Bunyakovsky conjecture), and is credited with an early discovery of the Cauchy-Schwarz inequality, proving it for the infinite dimensional case in 1859, many years prior to Hermann Schwarz's works on the subject.
* Bounjakowsky W., «Mémoires de l’Académie des sciences de St-Pétersbourg. 7 série», 1859, t. 1, № 9.
* O'Connor, John J; Edmund F. Robertson "Viktor Bunyakovsky". MacTutor History of Mathematics archive.