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E6 | pencil, paper, acrylic | each sheet 16 1/8 x 12 [ inches ] | ||
In grand unification theories, E6 appears as a possible gauge group which, after its breaking, gives rise to the SU(3) × SU(2) × U(1) gauge group of the standard model. One way of achieving this is through breaking to SO(10) × U(1). | wikipedia entry |