ScalingStacks

Definition 7.5 [037H]

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Definition 7.5

Using the notation from above, the tropical multiplicity mσm_{\sigma} along σ\sigma is defined by

mσ:=[φtrop−1(τ):Trop(q)(τ)]⋅[Mσ:M′]−1.m_{\sigma}:=[\varphi_{\rm trop}^{-1}(\tau):{\rm Trop}(q)(\tau)]\cdot[M_{\sigma}:M^{\prime}]^{-1}.

Furthermore, (φtrop)∗​(cyc⁡(Z))({\varphi_{\rm trop}})_{*}({\rm cyc}(Z)) is the weighted polyhedral complex 𝒞{\mathscr{C}} endowed with these tropical multiplicities.

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