Invariant Theory of Finite Groups
Invariant Theory of Finite Groups
Invariant Theory of Finite Groups
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Geometric BackgroundAlgebraic Geometry: dual point <strong>of</strong> viewx ∈ V ↔ (X i − x i |i = 1, · · · ,n) A maximal idealV := max − spec(A)Geometric objects:max − spec(A G ) = V//G, "categorical quotient".<strong>Invariant</strong> <strong>Theory</strong> <strong>of</strong> <strong>Finite</strong> <strong>Groups</strong> – p. 6/2