The Br_Q-equivariant q-stability and twisted-period isomorphism conjecture

Let QQ be a quiver of type ADE, let QStabsDX(Q)\operatorname{QStab}_s\operatorname{\mathcal{D}}_\mathbb{X}(Q) be its space of qq-stability conditions, and assume Re(s)2\operatorname{Re}(s)\geq 2. Set

ν=(s2)/2.\nu=(s-2)/2.

Let M~Q\widetilde{\mathcal{M}}_Q be the twisted-period space, let Pν ⁣:M~QCnP_\nu\colon\widetilde{\mathcal{M}}_Q\to\mathbb{C}^n be its period map, and let Zs ⁣:QStabsDX(Q)Cn\mathcal{Z}_s\colon\operatorname{QStab}_s\operatorname{\mathcal{D}}_\mathbb{X}(Q)\to\mathbb{C}^n be the central-charge map. Br_Q-equivariant q-stability and twisted-period isomorphism conjecture. There is a BrQ\operatorname{Br}_Q-equivariant isomorphism of complex manifolds ϕs\phi_s making the diagram with PνP_\nu and Zs\mathcal{Z}_s commute. In addition,

ϕsE=E,ϕsd=νCKZ,\phi_s^*\mathcal{E}=E,\qquad \phi_s^*\mathrm{d}=\nabla^{\mathrm{CKZ}}_\nu,

for the Euler fields and torsion-free flat connections on the two sides. The conjecture proposes a geometric identification between the stability-condition space and the twisted-period space, including compatibility with the Euler fields and flat connections; the supplied text gives no resolution evidence.

Sources & referencesView supporting material

Primary source

Akishi Ikeda and Yu Qiu, “q-Stability conditions on Calabi-Yau-X categories”, arXiv:1807.00469 (2023).

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