Last Updated:2025/12/03
The Young symmetrizer in the group algebra produces an idempotent whose image under the homomorphism induced by S_n acting on V{⊗n} by permuting tensor factors corresponds to an irreducible representation of the symmetric group over the complex numbers.
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The Young symmetrizer in the group algebra produces an idempotent whose image under the homomorphism induced by S_n acting on V{⊗n} by permuting tensor factors corresponds to an irreducible representation of the symmetric group over the complex numbers.
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群代数におけるヤング表に対応する対称化子は冪等元を作り、S_n がテンソル因子を置換して V^{⊗n} に作用することから生じる準同型によるその冪等元の像は複素数体上の対称群の既約表現に対応する。