## Abstract

For any prime p ≥ 7, by using Baker’s method we obtain two explicit bounds in terms of p for the j-invariant of an integral point on X^{+}_{ns}(p) which is the modular curve of level p corresponding to the normalizer of a non-split Cartan subgroup of GL_{2}(ℤ/pℤ).

Original language | English |
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Pages (from-to) | 3395-3410 |

Number of pages | 16 |

Journal | Proceedings of the American Mathematical Society |

Volume | 142 |

Issue number | 10 |

DOIs | |

Publication status | Published - 1 Oct 2014 |

Externally published | Yes |

## Keywords

- Baker’s method
- J-invariant
- Modular curves
- Non-split cartan

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