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  2. James Munkres - Wikipedia

    en.wikipedia.org/wiki/James_Munkres

    James Raymond Munkres (born August 18, 1930) is a Professor Emeritus of mathematics at MIT [1] and the author of several texts in the area of topology, including Topology (an undergraduate-level text), Analysis on Manifolds, Elements of Algebraic Topology, and Elementary Differential Topology. He is also the author of Elementary Linear Algebra.

  3. 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. Although algebraic topology primarily uses algebra to study topological ...

  4. Seifert–Van Kampen theorem - Wikipedia

    en.wikipedia.org/wiki/Seifert–van_Kampen_theorem

    Fundamental groups also appear in algebraic geometry and are the main topic of Alexander Grothendieck's first Séminaire de géométrie algébrique (SGA1). A version of Van Kampen's theorem appears there, and is proved along quite different lines than in algebraic topology, namely by descent theory. A similar proof works in algebraic topology. [18]

  5. 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 ...

  6. Fundamental group - Wikipedia

    en.wikipedia.org/wiki/Fundamental_group

    Massey, William S. (1991), A Basic Course in Algebraic Topology, Springer, ISBN 038797430X; May, J. Peter (1999), A Concise Course in Algebraic Topology, ISBN 9780226511832; Deane Montgomery and Leo Zippin, Topological Transformation Groups, Interscience Publishers (1955) Munkres, James R. (2000), Topology, Prentice Hall, ISBN 0-13-181629-2

  7. Simplicial homology - Wikipedia

    en.wikipedia.org/wiki/Simplicial_homology

    In algebraic topology, simplicial homology is the sequence of homology groups of a simplicial complex. It formalizes the idea of the number of holes of a given dimension in the complex. This generalizes the number of connected components (the case of dimension 0).

  8. Path (topology) - Wikipedia

    en.wikipedia.org/wiki/Path_(topology)

    A homotopy between two paths. Paths and loops are central subjects of study in the branch of algebraic topology called homotopy theory.A homotopy of paths makes precise the notion of continuously deforming a path while keeping its endpoints fixed.

  9. Brouwer fixed-point theorem - Wikipedia

    en.wikipedia.org/wiki/Brouwer_fixed-point_theorem

    The Brouwer fixed point theorem was one of the early achievements of algebraic topology, and is the basis of more general fixed point theorems which are important in functional analysis. The case n = 3 first was proved by Piers Bohl in 1904 (published in Journal für die reine und angewandte Mathematik ). [ 14 ]