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From equivariant volumes to equivariant periods

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arxiv 2211.13269 v2 pith:4Y4NJ4SX submitted 2022-11-23 hep-th math-phmath.AGmath.MPmath.SG

From equivariant volumes to equivariant periods

classification hep-th math-phmath.AGmath.MPmath.SG
keywords equivariantfunctionspartitionvolumesequationsparametersquotientsrelations
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We consider generalizations of equivariant volumes of abelian GIT quotients obtained as partition functions of 1d, 2d, and 3d supersymmetric GLSM on $S^1$, $D^2$ and $D^2 \times S^1$, respectively. We define these objects and study their dependence on equivariant parameters for non-compact toric K\"ahler quotients. We generalize the finite-difference equations (shift equations) obeyed by equivariant volumes to these partition functions. The partition functions are annihilated by differential/difference operators that represent equivariant quantum cohomology/K-theory relations of the target and the appearance of compact divisors in these relations plays a crucial role in the analysis of the non-equivariant limit. We show that the expansion in equivariant parameters contains information about genus-zero Gromov-Witten invariants of the target.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Indices of M5 and M2 branes at finite $N$ from equivariant volumes, and a new duality

    hep-th 2026-04 unverdicted novelty 7.0

    Finite-N indices for M5- and M2-branes are expressed via the same equivariant characteristic classes, generalizing M2/M5 duality through geometry exchange.

  2. $S^3$ partition functions and Equivariant CY$_4 $/CY$_3$ correspondence from Quantum curves

    hep-th 2026-03 conditional novelty 7.0

    Derives Airy representation for S^3 partition functions in M2-brane theories that exactly matches equivariant topological string predictions and proposes a new CY4 to C x CY3 correspondence via quantum curves.