| A note on modular curves and fundamental units of negative norm |
| Christian Weiß |
Abstract We re-prove the fact that the fundamental unit of the ring of integers of a real quadratic number field is of negative norm whenever the discriminant is a prime number congruent to $1 \mod 4$.
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Keywords: Hilbert modular surface, fundamental unit. |
MSC: 11F41, 11R11 |
Pages: 315--316 |
Volume 66 , Issue 3 , 2014 |
