ScalingStacks

Theorem 3 . [04SD]

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Theorem 3.

For every maximal dual Δ\Delta-complex Π\Pi there exists a stratified TnT^{n}-fibration λ∘:V∘→Π\lambda^{\circ}:{V}^{\circ}\to\Pi. This fibration satisfies to the following properties

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    the induced map (λ∘)∗:Hn​(Π,ℤ)→Hn​(V∘,ℤ)(\lambda^{\circ})^{*}:H^{n}(\Pi;\mathbb{Z})\to H^{n}({V}^{\circ};\mathbb{Z}) is injective, where Hn​(Π,ℤ)≈ℤpgH^{n}(\Pi;\mathbb{Z})\approx\mathbb{Z}^{p_{g}}, pg=hn,0p_{g}=h^{n,0} is the geometric genus of VV;

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    for each primitive piece UjU_{j} of Π\Pi (see Definition 5) the inverse image (λ∘)−1​(Uj)(\lambda^{\circ})^{-1}(U_{j}) is an open pair-of-pants 𝒫n\mathcal{P}_{n}.

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    for each nn-cell ee of Π\Pi there exists a point x∈ex\in e such that the fiber (λ∘)−1​(x)(\lambda^{\circ})^{-1}(x) is a Lagrangian nn-torus Tn⊂VT^{n}\subset V;

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    there exist Lagrangian embeddings ϕk:Sn→V∘\phi_{k}:S^{n}\to{V}^{\circ}, k=1,…,pgk=1,\dots,p_{g} such that the cycles λ∘​(ϕk​(Sn))\lambda^{\circ}(\phi_{k}(S^{n})) form a basis of Hn​(Π)H_{n}(\Pi).

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