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Bicylindrical domain

From Encyclopedia of Mathematics
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A domain $ D $ in the complex space $ \mathbf C ^ {2} $ that can be represented in the form of the Cartesian product of two planar domains $ D _ {1} $ and $ D _ {2} $, i.e.

$$ D = \{ {(z _ {1} , z _ {2} ) } : { z _ {1} \in D _ {1} , z _ {2} \in D _ {2} } \} . $$

A special case of a bicylindrical domain is the bidisc (bicylinder) $ B(a, r) = \{ {(z _ {1} , z _ {2} ) } : {| z _ {1} - a _ {1} | < r _ {1} , | z _ {2} - a _ {2} | < r _ {2} } \} $ of radius $ r = (r _ {1} , r _ {2} ) $ with centre at $ a = (a _ {1} , a _ {2} ) $. The Cartesian product of $ n $( for $ n \geq 3 $) planar domains is said to be a polycylindrical domain. A polydisc (polycylinder) is defined in a similar way.

How to Cite This Entry:
Bicylindrical domain. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Bicylindrical_domain&oldid=46052
This article was adapted from an original article by M. Shirinbekov (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article