Nonempty topologically convex space: Difference between revisions
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| [[Stronger than::contractible space]] || has a [[contracting homotopy]] || [[star-like implies contractible|via star-like]] || || {{intermediate notions short|contractible space|topologically convex space}} | | [[Stronger than::contractible space]] || has a [[contracting homotopy]] || [[star-like implies contractible|via star-like]] || || {{intermediate notions short|contractible space|topologically convex space}} | ||
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| [[Stronger than::semi-suddenly contractible space]] || has a [[semi-sudden homotopy|semi-sudden]] [[contracting homotopy]] | | [[Stronger than::semi-suddenly contractible space]] || has a [[semi-sudden homotopy|semi-sudden]] [[contracting homotopy]] || [[star-like implies contractible|via star-like]] || || {{intermediate notions short|semi-suddenly contractible space|topologically convex space}} | ||
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| [[Stronger than::SDR-contractible space]] || has a [[contracting homotopy]] that is a [[deformation retraction]] || [[star-like implies contractible|via star-like]] || || {{intermediate notions short|SDR-contractible space|topologically convex space}} | | [[Stronger than::SDR-contractible space]] || has a [[contracting homotopy]] that is a [[deformation retraction]] || [[star-like implies contractible|via star-like]] || || {{intermediate notions short|SDR-contractible space|topologically convex space}} | ||
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Revision as of 03:30, 9 November 2010
This article defines a property of topological spaces: a property that can be evaluated to true/false for any topological space|View a complete list of properties of topological spaces
Definition
A topologically convex space is a topological space that is homeomorphic to a convex subset of Euclidean space.
Relation with other properties
Weaker properties
| Property | Meaning | Proof of implication | Proof of strictness (reverse implication failure) | Intermediate notions |
|---|---|---|---|---|
| topologically star-like space | follows from convex implies star-like | |FULL LIST, MORE INFO | ||
| contractible space | has a contracting homotopy | via star-like | Equiconnected space, Space in which every retraction is a deformation retraction, Topologically star-like space|FULL LIST, MORE INFO | |
| semi-suddenly contractible space | has a semi-sudden contracting homotopy | via star-like | Topologically star-like space|FULL LIST, MORE INFO | |
| SDR-contractible space | has a contracting homotopy that is a deformation retraction | via star-like | Space in which every retraction is a deformation retraction, Topologically star-like space|FULL LIST, MORE INFO |