A388298 Degree zero coefficients in the self-intersection of a point in the quantum cohomology of a twisted flag manifold: a(n) is the coefficient of q^(3*A+ n*B) where A and B are the generators of the effective cone with first Chern number 2 and 0, respectively.

0, 0, 1, -5, 35, -273, 2244, -19019

Offset

0,4

Comments

Computing the next term using the localization formula gets harder exponentially. So very few terms are currently known.

Links

Table of n, a(n) for n=0..7.

D. Holmes and G. Muratore, Computations in equivariant Gromov-Witten theory of GKM spaces, arXiv:2509.07562 [math.AG], 2025. See Section 5.2 and Theorem 5.14.

First terms computed using GKMtools.jl.

Crossrefs

Sequence in context: A180900 A344840 A087630 * A390407 A084135 A229111

Adjacent sequences: A388295 A388296 A388297 * A388299 A388300 A388301

Keyword

sign,hard,more

Author

Giosuè Muratore, Sep 16 2025

Status

approved