In the seminar, she presented a new proof about horocyclic geodesics and their role in hyperbolic tessellations.

In the Poincaré disk model, geodesics and horocycles illustrate how lines and circles behave in hyperbolic geometry.

In the Poincaré disk model, a horocycle appears as a circle tangent to the boundary at infinity, its normals converging toward that tangency point.