This picture shows, in the upper-half space model, the non-vertical part of the boundary of a fundamental domain in hyperbolic three-space for the Bianchi Group SL(2, A), with A the ring of integers in the imaginary quadratic number field obtained by adjoining the squareroot of -37 to the rational numbers. The picture has been created by my co-author Mathias Fuchs from data computed with my program Bianchi.gp.
I have organised (jointly with Sejong Park)
"Groups in Galway 2014"
and "Groups in Galway 2015".
In 2016, I have organised the Bianchi Modularity Workshop, in Luxembourg.
In 2017, I have organised the Colloquium on the Geometry of Groups and Numbers at Université Pierre et Marie Curie, Institut Mathématique de Jussieu - Paris Rive Gauche.
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