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On Vafa–Witten equations over Kähler manifolds

  • Xuemiao Chen EMAIL logo
Published/Copyright: July 26, 2024

Abstract

In this paper, we study the analytic properties of solutions to the Vafa–Witten equation over a compact Kähler manifold. Simple obstructions to the existence of nontrivial solutions are identified. The gauge theoretical compactness for the C invariant locus of the moduli space is shown to behave similarly to the Hermitian Yang–Mills connections. More generally, this holds for solutions with uniformly bounded spectral covers such as nilpotent solutions. When spectral covers are unbounded, we manage to take limits of the renormalized Higgs fields which are intrinsically characterized by the convergence of the associated spectral covers. This gives a simpler proof for Taubes’ results on rank two solutions over Kähler surfaces together with a new complex geometric interpretation. The moduli space of SU ( 2 ) monopoles and some related examples are also discussed in the final section.

Award Identifier / Grant number: RGPIN-2023-03637

Award Identifier / Grant number: DGECR-2023-00054

Funding statement: The author was supported by NSERC grants RGPIN-2023-03637 and DGECR-2023-00054.

Acknowledgements

The author would like to thank Siqi He for helpful discussions on related topics and Ruxandra Moraru for pointing out several references. He would also like to thank the anonymous referee for carefully reading the paper, pointing out related references, and many valuable questions and suggestions which greatly improved the presentation of the paper.

References

[1] L. Álvarez Cónsul and O. García-Prada, Hitchin–Kobayashi correspondence, quivers, and vortices, Comm. Math. Phys. 238 (2003), no. 1–2, 1–33. 10.1007/s00220-003-0853-1Search in Google Scholar

[2] S. Bando and Y.-T. Siu, Stable sheaves and Einstein–Hermitian metrics, Geometry and analysis on complex manifolds, World Scientific, River Edge (1994), 39–50. 10.1142/9789814350112_0002Search in Google Scholar

[3] A. S. Besicovitch, On sufficient conditions for a function to be analytic, and on behaviour of analytic functions in the neighbourhood of non-isolated singular points, Proc. Lond. Math. Soc. (2) 32 (1931), no. 1, 1–9. 10.1112/plms/s2-32.1.1Search in Google Scholar

[4] X. Chen and S. Sun, Reflexive sheaves, Hermitian–Yang–Mills connections, and tangent cones, Invent. Math. 225 (2021), no. 1, 73–129. 10.1007/s00222-020-01027-9Search in Google Scholar

[5] S. K. Donaldson, Infinite determinants, stable bundles and curvature, Duke Math. J. 54 (1987), no. 1, 231–247. 10.1215/S0012-7094-87-05414-7Search in Google Scholar

[6] S. K. Donaldson and P. B. Kronheimer, The geometry of four-manifolds, Oxford Math. Monogr., The Clarendon Press, New York 1990. 10.1093/oso/9780198535539.001.0001Search in Google Scholar

[7] S. K. Donaldson and R. P. Thomas, Gauge theory in higher dimensions, The geometric universe (Oxford 1996), Oxford University, Oxford (1998), 31–47. 10.1093/oso/9780198500599.003.0003Search in Google Scholar

[8] D. Greb, B. Sibley, M. Toma and R. Wentworth, Complex algebraic compactifications of the moduli space of Hermitian Yang–Mills connections on a projective manifold, Geom. Topol. 25 (2021), no. 4, 1719–1818. 10.2140/gt.2021.25.1719Search in Google Scholar

[9] S. He, The behavior of sequences of solutions to the Hitchin–Simpson equations, arXiv, preprint (2020), https://arxiv.org/abs/2002.08109. Search in Google Scholar

[10] N. J. Hitchin, The self-duality equations on a Riemann surface, Proc. Lond. Math. Soc. (3) 55 (1987), no. 1, 59–126. 10.1112/plms/s3-55.1.59Search in Google Scholar

[11] M.-C. Hong and G. Tian, Asymptotical behaviour of the Yang–Mills flow and singular Yang–Mills connections, Math. Ann. 330 (2004), no. 3, 441–472. 10.1007/s00208-004-0539-9Search in Google Scholar

[12] S. Kobayashi, Differential geometry of complex vector bundles, Princeton University, Princeton 1987. 10.1515/9781400858682Search in Google Scholar

[13] T.-R. Lin, The Hermitian–Yang–Mills metrics and stability for holomorphic vector bundles with Higgs fields over compact Kaehler manifolds, University of California, San Diego 1989. Search in Google Scholar

[14] M. Lübke and A. Teleman, The Kobayashi–Hitchin correspondence, World Scientific, River Edge 1995. 10.1142/2660Search in Google Scholar

[15] M. Lübke and A. Teleman, The universal Kobayashi–Hitchin correspondence on Hermitian manifolds, Mem. Amer. Math. Soc. 183 (2006), no. 863, 1–97. 10.1090/memo/0863Search in Google Scholar

[16] F. Marchesano, R. Moraru and R. Savelli, A vanishing theorem for T-branes, J. High Energy Phys. 2020 (2020), no. 11, 1–32. 10.1007/JHEP11(2020)002Search in Google Scholar

[17] B. A. Mares, Jr, Some analytic aspects of Vafa–Witten twisted N = 4 supersymmetric Yang–Mills theory, Ph.D. Thesis, Massachusetts Institute of Technology, 2010. Search in Google Scholar

[18] R. Mazzeo, J. Swoboda, H. Weiss and F. Witt, Ends of the moduli space of Higgs bundles, Duke Math. J. 165 (2016), no. 12, 2227–2271. 10.1215/00127094-3476914Search in Google Scholar

[19] T. Mochizuki, Asymptotic behaviour of certain families of harmonic bundles on Riemann surfaces, J. Topol. 9 (2016), no. 4, 1021–1073. 10.1112/jtopol/jtw018Search in Google Scholar

[20] H. Nakajima, Compactness of the moduli space of Yang–Mills connections in higher dimensions, J. Math. Soc. Japan 40 (1988), no. 3, 383–392. 10.2969/jmsj/04030383Search in Google Scholar

[21] C. T. Simpson, Harmonic bundles on noncompact curves, J. Amer. Math. Soc. 3 (1990), no. 3, 713–770. 10.1090/S0894-0347-1990-1040197-8Search in Google Scholar

[22] C. T. Simpson, Higgs bundles and local systems, Publ. Math. Inst. Hautes Études Sci. 75 (1992), 5–95. 10.1007/BF02699491Search in Google Scholar

[23] Y. Tanaka, A weak compactness theorem of the Donaldson–Thomas instantons on compact Kähler threefolds, J. Math. Anal. Appl. 408 (2013), no. 1, 27–34. 10.1016/j.jmaa.2013.05.059Search in Google Scholar

[24] Y. Tanaka and R. P. Thomas, Vafa–Witten invariants for projective surfaces II: Semistable case, Pure Appl. Math. Q. 13 (2017), no. 3, 517–562. 10.4310/PAMQ.2017.v13.n3.a6Search in Google Scholar

[25] Y. Tanaka and R. P. Thomas, Vafa-Witten invariants for projective surfaces I: Stable case, J. Algebraic Geom. 29 (2020), no. 4, 603–668. 10.1090/jag/738Search in Google Scholar

[26] C. H. Taubes, The behavior of sequences of solutions to the Vafa–Witten equations, preprint (2017), https://arxiv.org/abs/1702.04610. Search in Google Scholar

[27] G. Tian, Gauge theory and calibrated geometry. I, Ann. of Math. (2) 151 (2000), no. 1, 193–268. 10.2307/121116Search in Google Scholar

[28] K. Uhlenbeck, A priori estimates for Yang–Mills fields, unpublished manuscript. Search in Google Scholar

[29] K. Uhlenbeck and S.-T. Yau, On the existence of Hermitian–Yang–Mills connections in stable vector bundles, Comm. Pure Appl. Math. 39 (1986), no. 2, S257–S293. 10.1002/cpa.3160390714Search in Google Scholar

[30] K. K. Uhlenbeck, Connections with L p bounds on curvature, Comm. Math. Phys. 83 (1982), no. 1, 31–42. 10.1007/BF01947069Search in Google Scholar

[31] C. Vafa and E. Witten, A strong coupling test of 𝑆-duality, Nuclear Phys. B 431 (1994), no. 1–2, 3–77. 10.1016/0550-3213(94)90097-3Search in Google Scholar

Received: 2023-05-17
Revised: 2024-05-18
Published Online: 2024-07-26
Published in Print: 2024-09-01

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