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

1 vote

what a Complex powers of operators to be the identity?

Here is a very dumb answer. Let your operator to be $$ \Delta=(i-1)I, \Delta(f)=if-f $$ Then it is trivial to verify that $$ (1+\Delta)^{4}f=f, 4>0 $$ So for the problem to be interesting, some extra …
Bombyx mori's user avatar
  • 6,249
0 votes

intersection of holomorphic curve with hyperplane

I think the general answer would be unbounded unless you restrict $f$ to be some special class of entire functions. But the reason for this is trivial; namely you can approximate any continuous comple …
Bombyx mori's user avatar
  • 6,249
2 votes

Rouché's Theorem in complex analysis on the relation of the number of zeros and poles of mer...

Dear Mr. Cunningham: The question you son asked is at an elementary level, but it has a wide range of associations. I think a one good reference is Prof. Tao's article: https://terrytao.wordpress.com/ …
Bombyx mori's user avatar
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6 votes

Theta functions on an elliptic curve and Serre duality

Here is a 'low-brow' approach. One type of the result you are talking about has been written up implicitly in Lang's book Introduction to Arakelov theory. The case for cohomology of the elliptic curv …
Bombyx mori's user avatar
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