most citedSymmetries of quadratic forms classes and of quadratic surds continued fractions. Part I: A Poincaré model for the de Sitter world

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math.GM2007★ 2 cited

Symmetries of quadratic forms classes and of quadratic surds continued fractions. Part II: Classification of the periods' palindromes

Francesca Aicardi

The continue fractions of quadratic surds are periodic, according to a theorem by Lagrange. Their periods may have differing types of symmetries. This work relates these types of s…