Open crepant resolution transformation formula for disk functions

Let XXY\mathcal{X}\rightarrow X\leftarrow Y be toric Calabi--Yau threefolds satisfying the closed crepant resolution conjecture, let O:HXHY\mathbb{O}:\mathcal{H}_\mathcal{X}\to\mathcal{H}_Y be the transformation relating the corresponding open theories, and let WK(Z)\mathfrak{W}\subset K(Z) be a grade-restriction window descending to bases for K(X)CK(\mathcal{X})\otimes\mathbb{C} and K(Y)CK(Y)\otimes\mathbb{C}. Write CH^=z12degCH\widehat{CH}_\bullet=z^{-\frac12\deg}CH_\bullet for the homogenized Chern-character matrix in these bases, and let Θ\Theta_\bullet be the operator defined by the displayed Gamma-class and disk-function formula. Open crepant resolution transformation formula. The transformation should satisfy

O=ΘYCH^YCH^X1ΘX1.\mathbb{O}=\Theta_Y\circ\widehat{CH}_Y\circ\widehat{CH}_\mathcal{X}^{-1}\circ\Theta_\mathcal{X}^{-1}.

This prediction expresses the open transformation through the grade-restriction-window correspondence and homogenized Chern characters; it is presented as a prediction, with no resolution status supplied.

Sources & referencesView supporting material

Primary source

Andrea Brini, Renzo Cavalieri and Dustin Ross, “The open string McKay correspondence for type A singularities”, arXiv:1303.0723 (2014).

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