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Connectedness in Topological Spaces
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Flashcards
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Local Connectedness
A topological space is locally connected at a point if every neighborhood of the point contains a connected open set containing the point.
Separation
A condition where a topological space can be divided into disjoint non-empty open sets.
Path-Connected Space
A topological space where any two points can be connected by a continuous path.
Disconnected Space
A topological space that can be represented as the union of two or more disjoint non-empty open sets.
Connected Component
A maximal connected subspace of a given topological space.
Homotopy
A continuous transformation of one function or shape into another within a topological space, maintaining continuity throughout the transformation.
Local Path-Connectedness
A topological space is locally path-connected at a point if every neighborhood of the point contains a path-connected open set containing the point.
Simple Connectedness
A path-connected space where any loop can be continuously contracted to a point within the space.
Connected Space
A topological space that cannot be represented as the union of two or more disjoint non-empty open sets.
Path Component
A maximal path-connected subspace of a given topological space.
Continuum
A non-empty compact connected metric space.
Clopen Set
A set in a topological space that is both open and closed.
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