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Complex analysis, holomorphic functions, automorphic group actions and forms, pseudoconvexity, complex geometry, analytic spaces, analytic sheaves.

47 votes

Does a power series converging everywhere on its circle of convergence define a continuous f...

This answer is in response to final sentence, "I would be very grateful to anybody who would write a new answer with a few lines of explanation as to what Sierpinski is actually doing". In fact, it is …
George Lowther's user avatar
7 votes
Accepted

Removable sets for harmonic functions and Hardy spaces of general domains

Yes, it is true that $H^p(\Omega)$ consists only of the constant functions for all $1\le p\le\infty$. This is because all nonnegative harmonic functions $f\colon\Omega\to\mathbb{R}$ are constant. You …
George Lowther's user avatar
15 votes
Accepted

Distribution of roots of complex polynomials

Letting $\mu_n$ be the distribution of a randomly chosen root of a random polynomial $f=c_0+c_1X+\cdots+c_nX^n$ in $\mathbb{C}[X]$ for IID random variables $c_i\in\mathbb{C}$, each chosen with some pr …
George Lowther's user avatar
11 votes

Uniformization theorem for Riemann surfaces

I learned the proof from this paper, Uniformization of Riemann Surfaces. They actually provide three methods of proof, and I found the first of these the easiest to follow. Its not too difficult to go …
22 votes
Accepted

When are complex polynomial maps almost surjective?

Being algebraically independent is indeed a necessary and sufficient condition for the image of $f$ to be dense. As $f\colon\mathbb{C}^n\to\mathbb{C}^n$ is regular, its image is constructible and, in …
George Lowther's user avatar