Functions of a complex variable Singularities and residues Concept
Annulus
Summary
An annulus is the region between two concentric circles, see the definition. In complex analysis, it is the open set , and it is the natural domain of a Laurent series.
Where this leads
4 pages build on this one.
Further reading
- Web https://en.wikipedia.org/wiki/Annulus_(mathematics), lead section
About this page
| Tag | 0CW52NV5TC |
|---|---|
| URI | m2://0CW52NV5TC |
| Aliases | annular-region, ring-domain |
| Kind | concept |
| Writing | W1 stated |
| MSC | 30A99 |
| Same as |
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What this page needs for W2
- edge instance_of in: at least two examples (0 of 2)
- edge not_instance_of in: at least one non-example (0 of 1)
- edge specializes both: the more general notions and the special cases (0 of 1)
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What links here
Definitions
Used by
- Region of convergence
- Poincaré–Birkhoff theorem
- Herman ring
- Hadamard three-circle theorem for subharmonic functions