The Dolbeault–Betti symplectic resolution conjecture for GG-Higgs moduli spaces

From papers

Let GG be a complex connected reductive group, and let MDolvc(G)M_{Dol}^{vc}(G) be the moduli space of GG-Higgs bundles with vanishing Chern classes over a compact Riemann surface of genus g2g\geq 2. Let MB(G)M_B(G) be the corresponding Betti moduli space (character variety). Dolbeault–Betti symplectic resolution conjecture. The moduli space MDolvc(G)M_{Dol}^{vc}(G) admits a symplectic resolution if and only if the moduli space MB(G)M_B(G) admits a symplectic resolution. The conjecture asks whether the existence of symplectic resolutions is preserved between the Dolbeault and Betti moduli spaces, despite their different geometric constructions; its status is not determined in the supplied text.

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Primary source

GyeongHyeon Nam, “Symplectic resolutions of moduli spaces of G-Higgs bundles”, arXiv:2607.24681 (2026).

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