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:

    “For my own part, I had rather suffer any inconvenience from having to work occasionally in chambers and kitchen ... than witness the subservience in which the menial class is held in Europe.”
    —Harriet Martineau (1802–1876)

    “It is the quality of the moment, not the number of days, or events, or of actors, that imports.”
    —Ralph Waldo Emerson (1803–1882)