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math.GT2022
Linking numbers of modular knots
Christopher-Lloyd Simon
The modular group PSL(2;Z) acts on the hyperbolic plane HP with quotient the modular surface M, whose unit tangent bundle U is a 3-manifold homeomorphic to the complement of the tr…
math.GR2022★ 1 cited
Conjugacy classes in PSL(2, K)
Christopher-Lloyd Simon
We first describe, over a field K of characteristic different from 2, the orbits for the adjoint actions of the Lie groups PGL(2, K) and PSL(2, K) on their Lie algebra sl(2, K). Wh…