16 Answers votes newest views recent 1functions of one complex variable: geometric theory 10When does continuity imply holomorphy? 2A question about the limit of a sequence of pointwise convergent analytic funtions 2Is there an explicit formula for the modulus of an annulus given a parameterization of the inner and outer boundries? 0Is the following function decreasing on $(0,1)$? 16Not especially famous, long-open problems which anyone can understand 24Blackbox Theorems 3Reference for complex analysis jargon 1holomorphic function with special decreasing property 1German mathematical terms like “Nullstellensatz” 25Examples of common false beliefs in mathematics. (2) 46Math puzzles for dinner 61Famous mathematical quotes 5Most helpful heuristic? 2Which sequences can be extended to analytic functions? (e. g., Ackermann’s function) 3In a Banach algebra, do ab and ba have almost the same exponential spectrum?