Miklos Schweitzer 1952_8
Source:
October 12, 2008
real analysisreal analysis unsolved
Problem Statement
For which values of does the series
\sum_{n\equal{}1}^{\infty}c_1c_2\cdots c_n z^n
converge, provided that and
\sum_{k\equal{}1}^{\infty} \frac{c_k}{k}<\infty ?