2013
DOI: 10.1063/1.4823483
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Stokes matrices for the quantum cohomologies of a class of orbifold projective lines

Abstract: Abstract. We prove the Dubrovin's conjecture for the Stokes matrices for the quantum cohomology of orbifold projective lines. The conjecture states that the Stokes matrix of the first structure connection of the Frobenius manifold constructed from the GromovWitten theory coincides with the Euler matrix of a full exceptional collection of the bounded derived category of the coherent sheaves. Our proof is based on the homological mirror symmetry, primitive forms of affine cusp polynomials and the Picard-Lefschet… Show more

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Cited by 6 publications
(3 citation statements)
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“…, E m of D b (X) such that the Stokes matrix of (H X , ∇) at z = 0 is equal to the matrix (χ(E i , E j )) i,j , where χ(E, F ) := k (−1) k dim Hom(E, F [k]) for objects E, F ∈ D b (X). Conjecture 1.1 has been proved for some X with semisimple quantum cohomology rings [13], [21], [29], [54], [55], etc.…”
Section: Dubrovin's Conjecturementioning
confidence: 99%
“…, E m of D b (X) such that the Stokes matrix of (H X , ∇) at z = 0 is equal to the matrix (χ(E i , E j )) i,j , where χ(E, F ) := k (−1) k dim Hom(E, F [k]) for objects E, F ∈ D b (X). Conjecture 1.1 has been proved for some X with semisimple quantum cohomology rings [13], [21], [29], [54], [55], etc.…”
Section: Dubrovin's Conjecturementioning
confidence: 99%
“…This is consistent with the Dubrovin's conjecture [39] for the Stokes matrix of the quantum cohomology of CP 1 . The conjecture was proved by D. Guzzetti [58] for projective spaces, K. Ueda [96,97] for Grassmannians and smooth cubic surfaces; see also [73,51,52,92] for related works on the conjecture.…”
Section: 2mentioning
confidence: 99%
“…(10) In [IT13], K. Iwaki and A. Takahashi proved validity of point (2) of Conjecture 5.1 for a class of orbifold projective lines P 1 A whose quantum cohomology is known to be semisimple, being isomorphic to the Frobenius manifold constructed from the theory of primitive forms for the polynomial for the symplectic isotropic Grassmannian IG(2, 6). The importance of this result is due to the fact that it underlines the need of considering the whole big quantum cohomology for the formulation of the conjecture, the small quantum locus being contained in the caustic (recall Definition 2.16).…”
Section: The Main Conjecturementioning
confidence: 99%