4 papers
Hyperbolic Heron Triangles and Elliptic Curves
Matilde Lalín, Olivier Mila
We define hyperbolic Heron triangles (hyperbolic triangles with "rational" side-lengths and area) and parametrize them in two ways as rational points of certain elliptic curves. We…
Non-commensurable hyperbolic manifolds with the same trace ring
Olivier Mila
We prove that there are infinitely many pairwise non-commensurable hyperbolic -manifolds that have the same ambient group and trace ring, for any . The manifolds can b…
The trace field of hyperbolic gluings
Olivier Mila
We determine the adjoint trace field of gluings of general hyperbolic manifolds. This provides a new method to prove the nonarithmeticity of gluings, which can be applied to the cl…
Hyperbolic manifolds and pseudo-arithmeticity
Vincent Emery, Olivier Mila
We introduce and motivate a notion of pseudo-arithmeticity, which possibly applies to all lattices in with . We further show that under an additional assump…