My favorite unsolved problems

Prize policies: when applicable, a prize for the problem will be payed with a check in US dollars to the first person who sends me a complete solution which I will verify and recognize as correct.

ENTIRE FUNCTIONS:

ps pdf An estimate of density of zeros. (Now solved).
ps pdf Exceptional set in Gross' Theorem.
ps pdf Three problems on level sets of subharmonic functions arising in the value distribution theory.

GEOMETRIC FUNCTION THEORY AND POTENTIAL THEORY:

ps pdf Some constants studied by Littlewood (Updated Oct 2002).
ps pdf "Hawaii Conjecture" (attributed to Gauss).
ps pdf Equilibrium points of Newtonian potentials (Maxwell)
ps pdf Does every universe contain a place where you can stay at rest? (Lee Rubel) $200
ps pdf Erdos' problem on the length of lemniscates (at least $200). Substantial recent progress is due to F. Nazarov and A. Fryntov.

DIFFERENTIAL EQUATIONS AND ITERATION IN THE COMPLEX DOMAIN:

ps pdf Meromorphic functions satisfying certain differential equations (E. Hille) Updated on May 22, 2007.
ps pdf Wandering domains of entire functions.
ps pdf Escaping sets for entire functions.

TRANSCENDENTAL HOLOMORPHIC CURVES:

ps pdf Modified Cartan's Conjecture. $300
ps pdf Holomorphic curves with few inflection points. $500

RATIONAL FUNCTIONS AND RATIONAL CURVES:

ps pdf Rational curves with real inflection points.
(B. and M. Shapiro, for more info, see F. Sottile's page)
Now solved by Mukhin, Tarasov and Varchenko.

Other interesting items in this site:

Progress report on some problems from Hayman's Collection

When function theory became an obsolete subject?
(Excerpt from a letter of Mittag-Leffler to Kowalevski.)

What is mathematics? Some expert's opinions.

jokes related to complex analysis

some problems, whose solutions I do know (level: undergraduate+)

stories about ODE, calculus and history