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Metrics with positive constant curvature and modular differential equations (2110.15580v1)
Published 29 Oct 2021 in math.CA and math.NT
Abstract: In this paper, we consider the problem when a differential equation y"(z)=Q(z)y(z) is Fuchsian on H* and apparent on H, where Q(z) is a meromorphic modular form of weight 4 on SL(2,Z) and H denotes the complex upper half-plane. Such a problem is closely related to the problem of the existence of a conformal metric with curvature 1/2 on H.
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