OAI/RepresentationTheory/FoulkesHowe/SecondEndpoints.lean

GitHub source file

5 declarations, 0 contain sorry, 0 declared as axioms

  1. theorem OAI.Problem346.SecondTransfer.initial_eval line 16

    Source documentation

    At the zero count vector, every row consists entirely of its independent vector.

    theorem initial_eval {r b : ℕ} (T : SymmetricMultilinearForm (r+1) b V)
        (v : Block r → V) :
        flattenedSymmetricForm T (fun p => v (label (fun _ : Fin r => 0) p)) =
          T (fun i => symMonomial b V (fun _ => v (some i))) := by
    …

    Mentions: OAI.Problem346.SymmetricMultilinearForm, OAI.Problem346.SecondTransfer.Block, OAI.Problem346.flattenedSymmetricForm, OAI.Problem346.SecondTransfer.label, OAI.Problem346.symMonomial

  2. theorem OAI.Problem346.SecondTransfer.terminal_eval line 24

    Source documentation

    At the terminal count vector, the first r factors in every moving row are the common vector. This is precisely the product form in the induction hypothesis.

    theorem terminal_eval (r m : ℕ)
        (T : SymmetricMultilinearForm (r+1) (r+m) V) (v : Block r → V) :
        flattenedSymmetricForm T (fun p => v (label (fun _ : Fin r => r) p)) =
          T (Fin.cons (symMonomial (r+m) V (fun _ => v (some 0)))
            (fun i => symPowMul r m (symMonomial r V (fun _ => v none))
              (symMonomial m V (fun _ => v (some i.succ))))) := by
    …

    Mentions: OAI.Problem346.SymmetricMultilinearForm, OAI.Problem346.SecondTransfer.Block, OAI.Problem346.flattenedSymmetricForm, OAI.Problem346.SecondTransfer.label, OAI.Problem346.symMonomial, OAI.Problem346.symPowMul

  3. theorem OAI.Problem346.SecondTransfer.terminal_eval_zero line 39

    Source documentation

    The known common-power vanishing implies the terminal labelled expression vanishes.

    theorem terminal_eval_zero (r m : ℕ)
        (T : SymmetricMultilinearForm (r+1) (r+m) V)
        (h : ∀ x t : V, ∀ Q : Fin r → SymPow m V,
          T (Fin.cons (symMonomial (r+m) V (fun _ => t))
            (fun i => symPowMul r m (symMonomial r V (fun _ => x)) (Q i))) = 0)
        (v : Block r → V) :
        flattenedSymmetricForm T (fun p => v (label (fun _ : Fin r => r) p)) = 0 := by
    …

    Mentions: OAI.Problem346.SymmetricMultilinearForm, OAI.Problem346.SymPow, OAI.Problem346.symMonomial, OAI.Problem346.symPowMul, OAI.Problem346.SecondTransfer.Block, OAI.Problem346.flattenedSymmetricForm, OAI.Problem346.SecondTransfer.label

  4. theorem OAI.Problem346.SecondTransfer.terminal_polynomial_zero line 50

    Source documentation

    The terminal labelled polynomial is zero, before any degree-shift cancellation.

    theorem terminal_polynomial_zero {κ : Type*} [Fintype κ] (r m : ℕ)
        (T : SymmetricMultilinearForm (r+1) (r+m) V) (e : κ → V)
        (h : ∀ x t : V, ∀ Q : Fin r → SymPow m V,
          T (Fin.cons (symMonomial (r+m) V (fun _ => t))
            (fun i => symPowMul r m (symMonomial r V (fun _ => x)) (Q i))) = 0) :
        multilinearPolynomial (flattenedSymmetricForm T) e (label (fun _ : Fin r => r)) = 0 := by
    …

    Mentions: OAI.Problem346.SymmetricMultilinearForm, OAI.Problem346.SymPow, OAI.Problem346.symMonomial, OAI.Problem346.symPowMul, OAI.Problem346.multilinearPolynomial, OAI.Problem346.flattenedSymmetricForm, OAI.Problem346.SecondTransfer.label

  5. theorem OAI.Problem346.SecondTransfer.independent_powers_zero_of_initial_polynomial_zero line 61

    Source documentation

    After cancelling all shifts, the initial polynomial identity evaluates to vanishing on independent pure powers in every slot.

    theorem independent_powers_zero_of_initial_polynomial_zero
        {κ : Type*} [Fintype κ] {r b : ℕ}
        (T : SymmetricMultilinearForm (r+1) b V) (e : Module.Basis κ ℂ V)
        (h : multilinearPolynomial (flattenedSymmetricForm T) e
          (label (fun _ : Fin r => 0)) = 0) (v : Fin (r+1) → V) :
        T (fun i => symMonomial b V (fun _ => v i)) = 0 := by
    …

    Mentions: OAI.Problem346.SymmetricMultilinearForm, OAI.Problem346.multilinearPolynomial, OAI.Problem346.flattenedSymmetricForm, OAI.Problem346.SecondTransfer.label, OAI.Problem346.symMonomial