Expected boundary vanishings for rank-zero Donaldson–Thomas invariants on the quintic

From papers

Let X5X_5 be the quintic threefold, let HH be its hyperplane class, and set κ=H3=5\kappa=H^3=5. Write ΩH\overline{\Omega}_H for the rank-zero invariant with Chern-character arguments displayed below. Expected quintic boundary vanishings. The following vanishings are expected:

ΩH(0,H,±(12+1κ)H2,H36)=0,\overline{\Omega}_H\left(0,H,\pm\left(\frac12+\frac1\kappa\right)H^2,\frac{H^3}{6}\right)=0,

and

ΩH(0,H,±(12+2κ)H2,(mκ+16)H3)=0for m=0,1.\overline{\Omega}_H\left(0,H,\pm\left(\frac12+\frac2\kappa\right)H^2,\left(-\frac{m}{\kappa}+\frac16\right)H^3\right)=0\qquad\text{for }m=0,-1.

These predictions concern stable-pair and rank-zero Donaldson–Thomas invariants near the Castelnuovo bound and are motivated in the source by physical arguments. No resolution status is given for these expected vanishings.

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Sources & referencesView supporting material

Primary source

Sergei Alexandrov, Soheyla Feyzbakhsh, Albrecht Klemm, Boris Pioline and Thorsten Schimannek, “Quantum geometry, stability and modularity”, arXiv:2301.08066 (2024).

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