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LeanPool.RegtsSevenster.RS.Novel.Coordinates.ParameterModel

The parameter value over the model #

Threading the transports through the factored parameter value: the argument of the cap functional becomes a model-side vector — the assembled star vector acted on by the sort's model permutation word and the degree-sum cast — pushed forward once.

noncomputable def RS.modelPermMap {k ℓ n : ℕ} (σ : Equiv.Perm (Fin n)) :

The model action of a permutation: trivial at arity zero, the braiding word of the adjacent-transposition word above.

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Instances For

    The permutation intertwining at every arity.

    The parameter value over the model: the cap functional evaluated on the transported model vector — the assembled star vector, permuted by the sort word and recast along the degree sum.