The moduli-space conjecture for enriched curves

From papers

Let YY be a nodal curve with b4b4 nodes, let Γ\Gamma be its dual graph, and let B\mathcal B be the set of bonds of Γ\Gamma. Define the vector-weight collection \widetilde\mathcal A_Y=(\underline{a}_1,\ldots,\underline{a}_{\delta},\underline{b}_0,\underline{b}_{\infty}) by

ai,B={0if eiB,1Bif eiB,a_{i,B}=\begin{cases}0&\text{if }e_i\notin B,\\ \frac{1}{|B|}&\text{if }e_i\in B,\end{cases}

for ai=(ai,B)BB\underline{a}_i=(a_{i,B})_{B\in\mathcal B}, together with b0=(1,1,,1)\underline{b}_0=(1,1,\ldots,1) and b=(bi,B)BB\underline{b}_{\infty}=(b_{i,B})_{B\in\mathcal B} where bi,B=1/Bb_{i,B}=1/|B|. Let EY\mathcal E_Y be the associated moduli space of enriched structures on YY, and let \overline{\mathcal M}_{0,\widetilde\mathcal A_Y} denote the moduli space of genus-zero curves with the indicated vector weights. The moduli-space conjecture for enriched curves. EY\mathcal E_Y is isomorphic to \overline{\mathcal M}_{0,\widetilde\mathcal A_Y}.

This would describe the enriched-structure space as a generalized Hassett moduli space. The construction is motivated by examples in which EY\mathcal E_Y is a Hassett moduli space, although the authors also note examples where it is not an ordinary Hassett space; the existence and identification of the generalized moduli space remain conjectural.

Progress summary

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Sources & referencesView supporting material

Primary source

Alex Abreu and Marco Pacini, “Enriched curves and their tropical counterpart”, arXiv:1412.5308 (2016).

Solutions 0

No solutions have been posted yet.