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Boundary (topology)

Boundary (topology)

All points in the topological closure not belonging to the interior.

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Readers' pathsAug 2026 – Oct 2026

Readers go next to

Share of the 1,581 clicks on its links

  1. Interior (topology)

    Largest open subset of some given set.

    30%

  2. Manifold

    Topological space that locally resembles Euclidean space.

    14%

  3. Topological space

    Mathematical space with a notion of closeness.

    9.4%

  4. Topology

    Branch of mathematics.

    5.2%

  5. Mathematics

    Field of knowledge.

    3.8%

  6. Neighbourhood (mathematics)

    Open set containing a given point.

    1.8%

Readers come from

Share of the 3,029 readers arriving from another article

  1. Black hole

    Compact astronomical body.

    14%

  2. Physical object

    Identifiable collection of matter.

    12%

  3. Closed set

    Complement of an open subset.

    12%

  4. Möbius strip

    Non-orientable surface with one edge.

    8.2%

  5. Dimension

    Property of a mathematical space.

    4.4%

  6. Interior (topology)

    Largest open subset of some given set.

    3.8%

  7. Klein bottle

    Non-orientable mathematical surface.

    3.5%

  8. Open set

    Basic subset of a topological space.

    3.3%

  9. Area

    Size of a two-dimensional surface.

    3%

  10. Ball (mathematics)

    Volume space bounded by a sphere.

    2.8%