The Romanian Academy Publishing House
Paul Erdos conjectured that for every n ∈ N, n ≥ 2, there exist a, b, c natural numbers, not necessarily distinct, so that 4 n = 1 a + 1 b + 1 c (see ). In this paper we prove an extension of Mordell’s theorem and formulate a conjecture which is stronger than Erdos’ conjecture.
Ionascu, Eugen J., "On the Erdos-Straus Conjecture" (2011). Faculty Bibliography. 847.