From: Joshua Cooper Newsgroups: sci.math.research Subject: help on Erdos conjecture references! Date: Wed, 27 Aug 97 12:00:55 EDT I need to find references on the following Erdos problem. I can't seem to find any. Does anyone know where work on this is published? The problem is: Does any function f from the naturals to the set {-1,1} exist such that the finite sums | f(0) + f(k) + f(2k) + ... + f(nk) | k>0, n>=0 are all bounded by a fixed number B? Thanks in advance. Joshua Cooper jcooper@mit.edu P.S. I would greatly appreciate direct email, if possible.