Definition:Annulus (Topology)
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This page is about annulus in the context of topology. For other uses, see annulus.
Definition
An annulus in the context of topology is a topological space which is homeomorphic with an annulus in the context of geometry.
Linguistic Note
The word annulus (pronounced an-nu-lus) is Latin for little ring.
Its plural form is annuli (pronounced an-nu-lee).
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): annulus
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): annulus