Skip to main content

All Questions

Filter by
Sorted by
Tagged with
3 votes
0 answers
219 views

Schwartz's theorem without English language reference

I'm reading the paper "Spectral Synthesis And The Pompeiu Problem" by Leon Brown, Bertram M. Schreiber and B. Alan Taylor, Annales de l’Institut Fourier 23, No. 3, 125-154 (1973), MR352492, ...
Holden Lyu's user avatar
3 votes
1 answer
386 views

A question about Lelong number

If $f$ is plurisubharmonic (not identically $-\infty$) on a neighbourhood of $0$ then the Lelong number of $f$ at $0$ is defined by $$\nu_{f}(0) = \liminf_{|z|\rightarrow 0}\dfrac{f(z)}{\log|z|}.$$ My ...
JohnMed's user avatar
  • 33
4 votes
2 answers
355 views

On a variation of Hartogs' separate analyticity theorem

Let $f(z_1,z_2,\ldots,z_n)$ be a function on $\mathbf{C}^n$ such that for all $i$, the restriction $$ [z_i\mapsto f(z_1,z_2,\ldots,z_n)] $$ is a "rational function". (added: to be precise ...
Hugo Chapdelaine's user avatar
3 votes
0 answers
89 views

Trace of a weighted composition operator on Bergman space

I am reading a series of papers by Pollicott, Jenkinson and coauthors which make use of the following type of result: Theorem: Let $\mathbb{D} \subset \mathbb{C}^d$ be a bounded, connected open set. ...
Ian Morris's user avatar
  • 6,206
1 vote
0 answers
294 views

Can an entire function have every root function?

My question is an amalgamation of two previous questions. The first question I'd like to draw attention to is here. It asks whether there can exist a non trivial semigroup defined on $\mathbb{C}$ $$\...
user avatar
7 votes
1 answer
248 views

Are there such things as non-trivial entire semigroups?

I'll state the theorem I am posing up front, and then explain why I think this theorem appears to be true. I am asking if anyone can prove it, or knows references to where it is proved. Please, ...
user avatar
2 votes
1 answer
373 views

Does the "Ohsawa-Takegoshi theorem without bounds" have a name?

There are many theorems which now could be called "The Ohsawa-Takegoshi" theorem. Of these, the most basic is roughly the following: Let $\Omega \subset \subset \mathbb{C}^n$ be a psuedoconvex ...
Steven Gubkin's user avatar