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arXiv · 2608.12507

Virasoro Recursions for Simplicially Stable Curves with Colliding Markings

You-Cheng Chou·Hsian-Hua Tseng
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Abstract

We study descendant integrals on moduli stacks of simplicially stable curves. For each finite collision complex, we factor the reduction morphism into elementary wall crossings and obtain a reconstruction formula in terms of ordinary Witten-Kontsevich correlators. We use the formula to derive corrected Virasoro recursions. We then package all finite-support theories in a completed disjoint-support Fock space, where the extended potential is a cumulant translate of the Witten-Kontsevich potential.

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You-Cheng Chou, Hsian-Hua Tseng. 2026-08-12. Virasoro Recursions for Simplicially Stable Curves with Colliding Markings. https://arxiv.org/abs/2608.12507

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