Jerzy Browkin (5 November 1934 â 23 November 2015) was a Polish mathematician, studying mainly algebraic number theory. He was a professor at the Institute of Mathematics of the Polish Academy of Sciences. In 1994, together with Juliusz Brzezià Âski, he formulated the n-conjectureâÂÂa version of the abc conjecture involving n > 2 integers.