Generic transversality conjecture for opers with real monodromy

Let X\mathscr{X} be a sufficiently general pointed Riemann surface, and let GG be the reductive group occurring in the moduli spaces below. The spaces OpP(X,G)\mathrm{Op}_P(\mathscr{X},G) and RepP0(Γ,G(R))\mathrm{Rep}_P^0(\Gamma,G(\mathbb{R})) are real submanifolds of RepP0(Γ,G(C))\mathrm{Rep}_P^0(\Gamma,G(\mathbb{C})), and write

OpP(X,G(R))=OpP(X,G)RepP0(Γ,G(R)).\mathrm{Op}_P(\mathscr{X},G(\mathbb{R}))=\mathrm{Op}_P(\mathscr{X},G)\cap\mathrm{Rep}_P^0(\Gamma,G(\mathbb{R})).

Generic transversality conjecture. The two real submanifolds OpP(X,G)\mathrm{Op}_P(\mathscr{X},G) and RepP0(Γ,G(R))\mathrm{Rep}_P^0(\Gamma,G(\mathbb{R})) intersect transversally at every point. Equivalently, OpP(X,G(R))\mathrm{Op}_P(\mathscr{X},G(\mathbb{R})) is a discrete set.

The assertion predicts that the discreteness proved for permissible GG-opers extends to all points for a sufficiently general pointed Riemann surface. It is presented as a general expectation in the source, and no resolution is supplied.

Sources & referencesView supporting material

Primary source

Yasuhiro Wakabayashi, “Opers with real monodromy and Eichler-Shimura isomorphism”, arXiv:2309.12203 (2023).

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