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Cartan theorem A (Theorem)

Let $ \mathcal{O}_z$ denote the ring of germs of holomorphic functions at $ z$

Theorem 1 (Cartan)   Suppose $ \mathcal{F}$ is a coherent analytic sheaf on a Stein manifold $ M$. For every $ z \in M$, the the stalk $ {\mathcal{F}}_z$ is generated as an $ {\mathcal{O}}_z$ module by the germs at $ z$ of the sections $ \Gamma(M,\mathcal{F})$.

Philosophically, this theorem says that there is good supply of global sections of a coherent analytic sheaf on a Stein manifold.

Bibliography

1
Lars Hörmander. An Introduction to Complex Analysis in Several Variables, North-Holland Publishing Company, New York, New York, 1973.
2
Steven G. Krantz. Function Theory of Several Complex Variables, AMS Chelsea Publishing, Providence, Rhode Island, 1992.



"Cartan theorem A" is owned by jirka.
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See Also: Cartan theorem B

Other names:  Cartan's theorem A
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Cross-references: module, stalk, Stein manifold, coherent analytic sheaf, holomorphic functions, germs, ring
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This is version 3 of Cartan theorem A, born on 2007-12-03, modified 2008-07-30.
Object id is 10086, canonical name is CartanTheoremA.
Accessed 701 times total.

Classification:
AMS MSC32C35 (Several complex variables and analytic spaces :: Analytic spaces :: Analytic sheaves and cohomology groups)
 32Q28 (Several complex variables and analytic spaces :: Complex manifolds :: Stein manifolds)

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