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Lax formulation for harmonic maps to a moduli of bundles

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arxiv 2106.09781 v2 pith:O3DATWA4 submitted 2021-06-17 math.AG hep-thmath.DG

classification math.AGhep-thmath.DG
keywords bundlesformulationmathcalmodulialgebraicclosedcomplexcurve
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abstract

I define an algebraic metric and closed 3-form on a subspace $\mathcal{M}$ of the moduli of $G$-bundles on a complex projective curve $C$, and show that the resulting two-dimensional $\sigma$-model with target $\mathcal{M}$ has a zero-curvature formulation.

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Cited by 3 Pith papers

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

  1. Time-Dependent Integrability from Gauge Theory, I

    hep-th 2026-07 accept novelty 7.5 of 10

    Spacetime-dependent 4d Chern-Simons theory generates time-dependent integrable field theories whose allowed time dependence coincides with one-loop RG flow while preserving Lax integrability.

  2. Twists of trigonometric sigma models

    hep-th 2025-04 accept novelty 7.0 of 10

    A new class of Z_N-twisted integrable sigma models is constructed from 4d Chern-Simons theory, and Z2 twisting by an outer automorphism of SU(n) produces models inequivalent to the untwisted ones.

  3. Torsors over moduli spaces of vector bundles over curves of fixed determinant

    math.AG 2025-07 conditional novelty 6.0 of 10

    A T^*M-torsor of projective connections on stable bundles over a curve is identified, up to a constant, with the torsor of holomorphic connections on the theta line bundle over the moduli space.

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