Constructive Approximation Open Problems
Research problems section of the journal, edited by Peter Borwein, Albert Cohen, Ingrid Daubechies and Vilmos Totik. Includes problem statement (PostScript) and discussion.
Favorite Unsolved Problems
Alexandre Eremenko (Purdue University). Mainly in analysis.
Open Problems in Linear Analysis and Probability
Problems taken from workshop lectures given at Texas A&M University.
Some Unsolved Problems
Mainly in analysis. By Jörg Winkelmann.
Unsolved Problems in Function Theory
Notes by Alexandre Eremenko.