**Kulyk, Yakiv **[Кулик, Яків; Kulik, Jakub], b 1 April 1783 in Lviv, d 28 February 1863 in Prague. Mathematician. He graduated from the law and philosophy faculties at Lviv University (1814), then taught at a gymnasium before completing his PH D in 1822. He was a professor of mathematics at Charles University in Prague from 1826, and a member of the Royal Czech Scientific Society and its head from 1835. He wrote a number of mathematics and mechanics texts and edited numerous tables; his table of divisors of integers consists of 4,212 pages. After the destruction of the Lviv University library by fire in 1848, he donated 1,000 books to it. His most important works are *Lehrbuch der höheren Mechanik* (1846) and *Der tausendjüahrige Kalender*.

[This article originally appeared in the *Encyclopedia of Ukraine*, vol. 2 (1988).]