Point-independence conjecture for log BPS numbers
Point-independence conjecture for log BPS numbers
Let be a rational log Calabi-Yau surface with smooth divisor and let . For , let denote the log BPS number at , and let be the total log BPS number; write for the relevant intersection number. Point-independence conjecture. For all ,
Equivalently, for all ,
The claim asserts that the log BPS contribution is independent of the point of maximal tangency. The surrounding text notes that the corresponding log counts can differ before imposing this conjectural BPS-level symmetry.
Sources & referencesView supporting material
Primary source
Jinwon Choi, Michel van Garrel, Sheldon Katz and Nobuyoshi Takahashi, “Log BPS numbers of log Calabi-Yau surfaces”, arXiv:1810.02377 (2020).
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