Séminaire Lotharingien de Combinatoire, 91B.66 (2024), 11 pp.

Amrutha P., Amritanshu Prasad and Velmurugan S.

Locally Invariant Vectors in Representations of Symmetric Groups

Abstract. For each permutation w in Sn and each irreducible representation (ρλ,Vλ) of Sn, we determine when ρλ(w) admits a non-zero invariant vector in Vλ. We find that non-zero invariant vectors exist in most cases, with very few exceptions.


Received: November 15, 2023. Accepted: February 15, 2024. Final version: April 1, 2024.

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