Def'n of holomorphically convex domain

In summary, the conversation is discussing the definition of a holomorphically convex domain in multivariable complex analysis. The definition involves the union of an ascending series of compact subsets, either K_n or the interior of K_n. A chapter about convexity is provided for further explanation.
  • #1
lark
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Does anyone have a textbook on multivariable complex analysis, and do they define a holomorphically convex domain in terms of the union of an ascending series of compact subsets? If so, how exactly does the definition go?
Was it [tex]D=\bigcup K_n[/tex] where [tex]K_n[/tex] is holomorphically convex and compact and [tex]K_n \subset K_{n+1}?[/tex]
Or [tex]D=\bigcup K_n[/tex] where [tex]K_n[/tex] is holomorphically convex and compact and [tex]K_n \subset \text{interior} (K_{n+1})?[/tex]
Laura
 
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1. What is a holomorphically convex domain?

A holomorphically convex domain is a subset of the complex plane where every two points can be joined by a holomorphic curve that stays entirely within the domain.

2. What does it mean for a domain to be holomorphically convex?

A holomorphically convex domain is one where holomorphic functions defined on the domain can be extended to larger domains without losing their analyticity.

3. How is holomorphic convexity related to convexity in real analysis?

In real analysis, a set is convex if for any two points in the set, the line segment connecting them is also contained in the set. Similarly, in complex analysis, a domain is holomorphically convex if for any two points in the domain, there exists a holomorphic curve connecting them that stays entirely within the domain.

4. What are some examples of holomorphically convex domains?

Some examples of holomorphically convex domains include simply connected domains, domains bounded by analytic curves, and domains that are convex and star-shaped with respect to a point.

5. How is holomorphic convexity important in complex analysis?

Holomorphic convexity is important in complex analysis because it allows for the extension of holomorphic functions to larger domains, which is a crucial tool in solving complex analysis problems and understanding the behavior of analytic functions.

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