Place: Room 614 in the Education & Sciences Building   Abstract: In 1925, Tarski asked whether a disk in R^2 can be partitioned into finitely many pieces which can be rearranged by isometries to form a square of the … Continue reading Colloquium: Tuesday, March 19, 2019. Speaker: Spencer Unger (Hebrew University). Title: “A constructive solution to Tarski’s circle squaring problem”.