Dubrovin's refined conjecture for Fano varieties
Dubrovin's refined conjecture for Fano varieties
Let be a Fano variety of complex dimension with odd-vanishing cohomology, and let be a power series with convergence domain . Let denote the bounded derived category of coherent sheaves on , and let be the Euler pairing of objects in this category. Write for the relevant solution and for the topological-enumerative solution. Let be the negative Gamma class, let be the first Chern class, and put . Dubrovin's refined conjecture. The quantum cohomology of is semisimple if and only if admits a full exceptional collection. If the quantum cohomology of is semisimple, then there exists a full exceptional collection such that the Stokes matrix is the inverse of the Euler matrix , and the central connection matrix connecting with is the matrix whose columns are the coordinates of
This refines Dubrovin's original conjecture by specifying the central connection matrix through Gamma classes and Chern characters. The paper proves the conjecture for the Lagrangian Grassmannian , while the general statement remains open.
Progress summary
Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.
Sources & referencesView supporting material
Primary source
Fangze Sheng, “Proof of the refined Dubrovin conjecture for the Lagrangian Grassmanian LG(2,4)”, arXiv:2409.03590 (2024).
Solutions 0
Sign in to submit a solution.
No solutions have been posted yet.