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  2. Locally connected space - Wikipedia

    en.wikipedia.org/wiki/Locally_connected_space

    A locally path connected space [3] [1] is a space that is locally path connected at each of its points. Locally path connected spaces are locally connected. The converse does not hold (see the lexicographic order topology on the unit square ).

  3. Connected space - Wikipedia

    en.wikipedia.org/wiki/Connected_space

    Every locally path-connected space is locally connected. A locally path-connected space is path-connected if and only if it is connected. The closure of a connected subset is connected. Furthermore, any subset between a connected subset and its closure is connected. The connected components are always closed (but in general not open) The ...

  4. Semi-locally simply connected - Wikipedia

    en.wikipedia.org/wiki/Semi-locally_simply_connected

    In mathematics, specifically algebraic topology, semi-locally simply connected is a certain local connectedness condition that arises in the theory of covering spaces. Roughly speaking, a topological space X is semi-locally simply connected if there is a lower bound on the sizes of the “holes” in X .

  5. Topological property - Wikipedia

    en.wikipedia.org/wiki/Topological_property

    A space is locally path-connected if every point has a local base consisting of path-connected sets. A locally path-connected space is connected if and only if it is path-connected. Arc-connected. A space X is arc-connected if for every two points x, y in X, there is an arc f from x to y, i.e., an injective continuous map : [,] with () = and ...

  6. Glossary of general topology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_general_topology

    A space is locally path-connected if every point has a local base consisting of path-connected neighbourhoods. [15] A locally path-connected space is connected if and only if it is path-connected. Locally simply connected A space is locally simply connected if every point has a local base consisting of simply connected neighbourhoods. Loop

  7. Locally simply connected space - Wikipedia

    en.wikipedia.org/wiki/Locally_simply_connected_space

    In mathematics, a locally simply connected space is a topological space that admits a basis of simply connected sets. [1] [2] Every locally simply connected space is also locally path-connected and locally connected. The Hawaiian earring is not locally simply connected. The circle is an example of a locally simply connected space which is not ...

  8. Hawaiian earring - Wikipedia

    en.wikipedia.org/wiki/Hawaiian_earring

    The space is homeomorphic to the one-point compactification of the union of a countable family of disjoint open intervals. The Hawaiian earring is a one-dimensional, compact, locally path-connected metrizable space.

  9. Local system - Wikipedia

    en.wikipedia.org/wiki/Local_system

    Local systems have a mild generalization to constructible sheaves-- a constructible sheaf on a locally path connected topological space is a sheaf such that there exists a stratification of X = ∐ X λ {\displaystyle X=\coprod X_{\lambda }}