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  2. 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 ...

  3. Category:Algebraic topology - Wikipedia

    en.wikipedia.org/wiki/Category:Algebraic_topology

    Algebraic topology is a branch of mathematics in which tools from abstract algebra are used to study topological spaces Subcategories. This category has the following ...

  4. William Browder (mathematician) - Wikipedia

    en.wikipedia.org/wiki/William_Browder...

    William Browder (born January 6, 1934) [1] [2] is an American mathematician, specializing in algebraic topology, differential topology and differential geometry.Browder was one of the pioneers with Sergei Novikov, Dennis Sullivan and C. T. C. Wall of the surgery theory method for classifying high-dimensional manifolds.

  5. Algebraic topology (object) - Wikipedia

    en.wikipedia.org/wiki/Algebraic_topology_(object)

    This terminology is often used in the case of the algebraic topology on the set of discrete, faithful representations of a Kleinian group into PSL(2,C). Another topology, the geometric topology (also called the Chabauty topology ), can be put on the set of images of the representations, and its closure can include extra Kleinian groups that are ...

  6. Glossary of algebraic topology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_algebraic_topology

    This is a glossary of properties and concepts in algebraic topology in mathematics. See also: glossary of topology, list of algebraic topology topics, glossary of category theory, glossary of differential geometry and topology, Timeline of manifolds. Convention: Throughout the article, I denotes the unit interval, S n the n-sphere and D n the n ...

  7. Ronald Brown (mathematician) - Wikipedia

    en.wikipedia.org/wiki/Ronald_Brown_(mathematician)

    Among his several books and standard topology and algebraic topology textbooks are: Elements of Modern Topology (1968), Low-Dimensional Topology (1979, co-edited with T.L. Thickstun), Topology: a geometric account of general topology, homotopy types, and the fundamental groupoid (1998), [15] [16] Topology and Groupoids (2006) [17] and ...

  8. Čech cohomology - Wikipedia

    en.wikipedia.org/wiki/Čech_cohomology

    A Penrose triangle depicts a nontrivial element of the first cohomology of an annulus with values in the group of distances from the observer. [1]In mathematics, specifically algebraic topology, Čech cohomology is a cohomology theory based on the intersection properties of open covers of a topological space.

  9. Cohomology - Wikipedia

    en.wikipedia.org/wiki/Cohomology

    In mathematics, specifically in homology theory and algebraic topology, cohomology is a general term for a sequence of abelian groups, usually one associated with a topological space, often defined from a cochain complex. Cohomology can be viewed as a method of assigning richer algebraic invariants to a space than homology.