We prove that if two level curves of a harmonic function are convex in the hyperbolic disc then all intermediate level curves are also convex. This item is part of a ...
Abstract Let 𝐾 be a quadratic number field and let 𝐸 be a ℚ-curve without CM completely defined over 𝐾 and not isogenous to an elliptic curve over ℚ. In this setting, it is known that there exists ...
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