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math.AG2013
On caustics by reflection of algebraic surfaces
Alfrederic Josse, Francoise Pene
Given a point S (the light position) in P^3 and an algebraic surface Z (the mirror) of P^3, the caustic by reflection of Z from S is the Zariski closure of the envelope of the refl…
math.AG2013★ 1 cited
Degree and class of caustics by reflection for a generic source
Alfrederic Josse, Francoise Pene
We are interested in the study of caustics by reflection of irreducible algebraic planar curves (in the complex projective plane). We prove the birationality of the caustic map (fo…