Wiki
Research notes on every problem, and a library of the papers behind them. Built from the open erdos repository.
Updated
Claims
1990_02_01_laczkovich: A disk and a square of the same area are equidecomposable into finitely many congruent pieces, and the pieces can even be matched by translations alone; Tarski's circle-squaring problem answered yes in Crelle's journal.
Linked from (1)
Graph