228 Index
Two-sided ideal, 15
Unit, 9
Unit morphism, 178
Unitary representation of a group,
69
Universal enveloping algebra of a
Lie algebra, 24, 35
Virtual representation, 105
Weyl algebra, 17
Weyl group, 163
Young diagram, 110
Young projector, 111
Young tableau, 110
Zariski dense subset, 145
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