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  2. Topological algebra - Wikipedia

    en.wikipedia.org/wiki/Topological_algebra

    A topological algebra over a topological field is a topological vector space together with a bilinear multiplication :, (,) that turns into an algebra ...

  3. Topology - Wikipedia

    en.wikipedia.org/wiki/Topology

    A three-dimensional model of a figure-eight knot.The figure-eight knot is a prime knot and has an Alexander–Briggs notation of 4 1.. Topology (from the Greek words τόπος, 'place, location', and λόγος, 'study') is the branch of mathematics concerned with the properties of a geometric object that are preserved under continuous deformations, such as stretching, twisting, crumpling ...

  4. Algebraic topology - Wikipedia

    en.wikipedia.org/wiki/Algebraic_topology

    Algebraic topology is a branch of mathematics that uses tools from abstract algebra to study topological spaces. The basic goal is to find algebraic invariants that classify topological spaces up to homeomorphism , though usually most classify up to homotopy equivalence .

  5. List of mathematics journals - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematics_journals

    Algebra & Number Theory; Algebra Colloquium; Algebra i Logika; Algebra Universalis; Algebraic & Geometric Topology; Algebraic Combinatorics; American Journal of Mathematics; American Mathematical Monthly; Analysis and Applications; The Analyst, or, Mathematical Museum; Annales Academiae Scientiarum Fennicae. Mathematica; Annales de Gergonne ...

  6. Set-theoretic topology - Wikipedia

    en.wikipedia.org/wiki/Set-theoretic_topology

    Cardinal functions are widely used in topology as a tool for describing various topological properties. [4] [5] Below are some examples.(Note: some authors, arguing that "there are no finite cardinal numbers in general topology", [6] prefer to define the cardinal functions listed below so that they never take on finite cardinal numbers as values; this requires modifying some of the definitions ...

  7. General topology - Wikipedia

    en.wikipedia.org/wiki/General_topology

    The Topologist's sine curve, a useful example in point-set topology.It is connected but not path-connected. In mathematics, general topology (or point set topology) is the branch of topology that deals with the basic set-theoretic definitions and constructions used in topology.

  8. Topological data analysis - Wikipedia

    en.wikipedia.org/wiki/Topological_data_analysis

    The Database of Original & Non-Theoretical Uses of Topology (DONUT) is a database of scholarly articles featuring practical applications of topological data analysis to various areas of science. DONUT was started in 2017 by Barbara Giunti, Janis Lazovskis, and Bastian Rieck, [ 126 ] and as of October 2023 currently contains 447 articles. [ 127 ]

  9. Combinatorial topology - Wikipedia

    en.wikipedia.org/wiki/Combinatorial_topology

    This corresponds also to the period where homological algebra and category theory were introduced for the study of topological spaces, and largely supplanted combinatorial methods. More recently the term combinatorial topology has been revived for investigations carried out by treating topological objects as composed of pieces as in the older ...

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