Class Number

In mathematics, class number may refer to

  • Class number (group theory), the number of conjugacy classes of a group
  • The size of the ideal class group of a number ring
  • The number of equivalence classes of binary quadratic forms of a given discriminant

Famous quotes containing the words class and/or number:

    “People ask how can a Jewish kid from the Bronx do preppy clothes? Does it have to do with class and money? It has to do with dreams.”
    —Ralph Lauren (b. 1939)

    “Love has its name borrowed by a great number of dealings and affairs that are attributed to it—in which it has no greater part than the Doge in what is done at Venice.”
    —François, Duc De La Rochefoucauld (1613–1680)