Dual Group

In mathematics, the dual group may be:

  • The Pontryagin dual of a locally compact abelian group
  • The Langlands dual of a reductive algebraic group
  • The Deligne–Lusztig dual of a reductive group over a finite field.

Famous quotes containing the words dual and/or group:

    “Thee for my recitative,
    Thee in the driving storm even as now, the snow, the winter-day
    declining,
    Thee in thy panoply, thy measur’d dual throbbing and thy beat
    convulsive,
    Thy black cylindric body, golden brass and silvery steel,”
    —Walt Whitman (1819–1892)

    “around our group I could hear the wilderness listen.”
    —William Stafford (1914–1941)