Algebraicity or infinite local monodromy for integral solutions at singular points

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Let X/CX/\mathbb{C} be a smooth projective curve, let D⊂XD\subset X be a reduced effective divisor, and let (E,∇:E→E⊗ΩX1(log⁡D))(\mathscr{E},\nabla:\mathscr{E}\to\mathscr{E}\otimes\Omega_X^1(\log D)) be a logarithmic flat bundle on (X,D)(X,D). For x∈Dx\in D, let ss be an integral formal flat section at xx. Singular-point conjecture. Either ss is algebraic, or (E,∇)(\mathscr{E},\nabla) has infinite monodromy at xx. This is presented as a local prediction of the main conjecture; the source gives no resolution.

References

Primary source

Yeuk Hay Joshua Lam and Daniel Litt, “Algebraicity and integrality of solutions to differential equations”, arXiv:2501.13175 (2025).

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