{ "id": "2110.15504", "version": "v2", "published": "2021-10-29T02:57:06.000Z", "updated": "2022-06-27T23:44:57.000Z", "title": "A Remark on Random Vectors and Irreducible Representations", "authors": [ "Alexander Kushkuley" ], "categories": [ "math.PR", "cs.NA", "math.NA", "math.RT" ], "abstract": "It was observed in \\cite{Al2} that the expectation of a squared scalar product of two random independent unit vectors that are uniformly distributed on the unit sphere in $\\mathbb{R}^n $ is equal to $1/n$. It is shown below that this is a characteristic property of random unit vectors defined on invariant probability subspaces of irreducible real representations of compact Lie groups.", "revisions": [ { "version": "v2", "updated": "2022-06-27T23:44:57.000Z" } ], "analyses": { "subjects": [ "20Cxx", "37L40", "60B99", "65C50", "65C20" ], "keywords": [ "random vectors", "irreducible representations", "random independent unit vectors", "random unit vectors", "invariant probability subspaces" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }