OAI/RepresentationTheory/FoulkesHowe/LinearCase.lean

GitHub source file

4 declarations, 0 contain sorry, 0 declared as axioms

  1. theorem OAI.Problem346.foulkesFormula_one line 11
  2. def OAI.Problem346.foulkesOneEquiv line 19

    Source documentation

    The canonical Foulkes--Howe equivalence when the inner degree is one.

    def foulkesOneEquiv (b : ℕ) (V : Type u) [AddCommGroup V] [Module ℂ V] :
        SymPow b (SymPow 1 V) ≃ₗ[ℂ] SymPow 1 (SymPow b V) :=
    …

    Mentions: OAI.Problem346.SymPow

  3. theorem OAI.Problem346.foulkesOneEquiv_isFoulkesMap line 23
  4. theorem OAI.Problem346.canonical_foulkes_howe_a_one_aux line 30

    Source documentation

    Degree-one stabilization, with no finite-dimensionality requirement.

    theorem canonical_foulkes_howe_a_one_aux (V : Type u)
        [AddCommGroup V] [Module ℂ V] (b : ℕ) :
        ∃ μ : SymPow b (SymPow 1 V) →ₗ[ℂ] SymPow 1 (SymPow b V),
          IsFoulkesMap 1 b V μ ∧ Function.Bijective μ ∧
          ∀ ν : SymPow b (SymPow 1 V) →ₗ[ℂ] SymPow 1 (SymPow b V),
            IsFoulkesMap 1 b V ν → ν = μ := by
    …

    Mentions: OAI.Problem346.SymPow, OAI.Problem346.IsFoulkesMap