Borot–Garcia-Failde's exchange conjecture for fully simple map amplitudes

Let C\mathcal{C} be the spectral curve for ordinary maps or maps with loops, with coordinate xx and disk amplitude w=W1[0](x)w=W_{1}^{[0]}(x). Let ωˇn[g]\check{\omega}_{n}^{[g]} be the topological-recursion amplitudes for the initial data obtained by exchanging xx and ww, and let Xn[g]X_{n}^{[g]} denote the generating series of fully simple maps. For 2g2+n>02g-2+n>0, the variables ziz_i are points of C\mathcal{C} and the equality is understood as a formal Laurent-series identity near zi[]z_i\to[\infty].

Fully simple amplitude conjecture. For ordinary maps or maps with loops,

Xn[g](w(z1),,w(zn))=ωˇn[g](z1,,zn)dw(z1)dw(zn),2g2+n>0.X_{n}^{[g]}(w(z_1),\ldots,w(z_n))=\frac{\check{\omega}_{n}^{[g]}(z_1,\ldots,z_n)}{\mathrm{d}w(z_1)\cdots\mathrm{d}w(z_n)},\qquad 2g-2+n>0.

This is the enumerative form of the proposed xwx\leftrightarrow w symplectic exchange. The disk and cylinder cases are proved in the source, while the general stable-topology statement remains conjectural.

Sources & referencesView supporting material

Primary source

Gaëtan Borot and Elba Garcia-Failde, “Simple maps, Hurwitz numbers, and Topological Recursion”, arXiv:1710.07851 (2018).

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