The master colour sum #
The parameter value as a pure colour-combinatorial sum: the cap expansion through the closed form, the permutation and cast transports, and the star-vector coordinates.
theorem
RS.parameter_colour_sum
{R : ℕ}
(f : EdgeRankParameter R)
(P : DelignePackage (SkeinObj f))
{k ℓ : ℕ}
(e : stdSuperPair k ℓ ⟶ P.ω.obj { arity := 1 })
(e' : P.ω.obj { arity := 1 } ⟶ stdSuperPair k ℓ)
(W : ClosedFragment)
(hee' : CategoryTheory.CategoryStruct.comp e' e = CategoryTheory.CategoryStruct.id (P.ω.obj { arity := 1 }))
(hform :
SuperVect.Hom.comp
(CategoryTheory.CategoryStruct.comp (CategoryTheory.Functor.LaxMonoidal.μ P.ω { arity := 1 } { arity := 1 })
(CategoryTheory.CategoryStruct.comp (P.ω.map (ε_ { arity := 1 } { arity := 1 }))
(CategoryTheory.Functor.OplaxMonoidal.η P.ω)))
(SuperVect.tensorHom e e) = stdForm k ℓ)
:
f.val W = circleVal f ^ W.circles * ∑ c : { c : MixedColouring k ℓ (edgeCount W + edgeCount W) // c.IsEven },
((-1) ^ oddInversions (sortSplitPerm W) (↑c ∘ ⇑(finCongr ⋯)) * ∏ v : Fin (degList (starAssignEnum W)).length,
starCoord f P e' ((degList (starAssignEnum W)).get v)
(blockRestrict (degList (starAssignEnum W)) ((↑c ∘ ⇑(finCongr ⋯)) ∘ ⇑(sortSplitPerm W)) v)) * betaDiag (edgeCount W) ↑c
The master colour sum: the parameter value is the circle factor times the colour sum of the transported star coordinates against the diagonal cap pairing.