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:

    “The class at Harvard in 1851, have purchased for themselves a notoriety they will not covet in years to come.”
    —Harriot K. Hunt (1805–1875)

    “One may confidently assert that when thirty thousand men fight a pitched battle against an equal number of troops, there are about twenty thousand on each side with the pox.”
    —Voltaire [François Marie Arouet] (1694–1778)