The logarithmic stable-pairs rationality and DT/PT correspondence conjecture

Let (X,D)(X,D) be a logarithmic pair, let β\beta be a curve class, let μ\mu be a relative insertion, and let τki(γi)\tau_{k_i}(\gamma_i) be descendent insertions. Denote the logarithmic stable-pairs partition function by ZPT\mathsf{Z}_{\mathsf{PT}} and the normalized logarithmic DT series by ZDT\mathsf{Z}'_{\mathsf{DT}}. The logarithmic stable-pairs rationality and DT/PT conjecture. For every β\beta, μ\mu, and insertions γ1,,γr\gamma_1,\ldots,\gamma_r, the series

ZPT(X,D;qi=1rτki(γi)μ)β\mathsf{Z}_{\mathsf{PT}}\left(X,D;q\mid\prod_{i=1}^r\tau_{k_i}(\gamma_i)\mid\mu\right)_\beta

is a rational function of qq. If every γi\gamma_i has degree at least 22, then it equals the normalized DT series ZDT\mathsf{Z}'_{\mathsf{DT}} from the basic logarithmic Donaldson–Thomas conjecture. This is the expected logarithmic analogue of PT rationality and DT/PT wall crossing; the source gives no proof or resolution.

Sources & referencesView supporting material

Primary source

Davesh Maulik and Dhruv Ranganathan, “Logarithmic Donaldson-Thomas theory”, arXiv:2006.06603 (2024).

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