Abelian - Topology and Number Theory

Topology and Number Theory

  • Abelian variety, a complex torus that can be embedded into projective space
  • Abelian surface, a two-dimensional abelian variety
  • Abelian function, a meromorphic function on an abelian variety
  • Abelian integral, a function related to the indefinite integral of a differential of the first kind
In category theory
  • Pre-abelian category, an additive category that has all kernels and cokernels
  • Abelian category, a preabelian category in which every monomorphism is a kernel and every epimorphism is a cokernel
In physics
  • A gauge theory is abelian or non-abelian depending on whether its symmetry group is commutative or non-commutative, respectively

Read more about this topic:  Abelian

Famous quotes containing the words number and/or theory:

    “This nightmare occupied some ten pages of manuscript and wound off with a sermon so destructive of all hope to non-Presbyterians that it took the first prize. This composition was considered to be the very finest effort of the evening.... It may be remarked, in passing, that the number of compositions in which the word “beauteous” was over-fondled, and human experience referred to as “life’s page,” was up to the usual average.”
    —Mark Twain [Samuel Langhorne Clemens] (1835–1910)

    “[Anarchism] is the philosophy of the sovereignty of the individual. It is the theory of social harmony. It is the great, surging, living truth that is reconstructing the world, and that will usher in the Dawn.”
    —Emma Goldman (1869–1940)