Special curves in modular surfaces
Canadian mathematical bulletin, Tome 66 (2023) no. 1, pp. 1-18
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We show that geodesics in $\mathbf {H}$ attached to a maximal split torus or a real quadratic torus in $GL_{2, \mathbf {Q}}$ are the only irreducible algebraic curves in $\mathbf {H}$ whose image in $\mathbf {R}^2$ via the j-invariant is contained in an algebraic curve.
Mots-clés :
Geodesics, modular curve, j-invariant, functional transcendence
Tamiozzo, Matteo. Special curves in modular surfaces. Canadian mathematical bulletin, Tome 66 (2023) no. 1, pp. 1-18. doi: 10.4153/S0008439521000941
@article{10_4153_S0008439521000941,
author = {Tamiozzo, Matteo},
title = {Special curves in modular surfaces},
journal = {Canadian mathematical bulletin},
pages = {1--18},
year = {2023},
volume = {66},
number = {1},
doi = {10.4153/S0008439521000941},
url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008439521000941/}
}
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