[1] His research in partial differential equations, applied mathematics and classical analysis, particularly on harmonic functions, gained him a wide recognition.
He was one of the mathematicians who contributed to the success of the Polish School of Mathematics through his teaching and organizational skills as well as through his research.
He was a professor of the Jagiellonian University (since 1900), member of Academy of Learning (since 1903), co-founder and president of the Polish Mathematical Society (1919), and the first editor of the Annales de la Société Polonaise de Mathématique.
[1] The same year he left Saint Petersburg and went to Paris to study mathematics: he received his degree from the Sorbonne in 1889.
Zaremba's magneficent discoveries found a broad response and deep appreciation in the world.