Gil Bor, Cusps of Caustics by Reflection in a Convex Billiard Table
B236-1 IBSSpeaker Gil Bor CIMAT Place a point light source inside a smooth convex billiard table (or mirror). The n-th caustic by reflection is the envelope of light rays …
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Gil Bor
Gil Bor, Bicycle Tracks, their Monodromy Invariants and Geodesics
B236-1 IBSSpeaker Gil Bor CIMAT At first sight, the pair of front and back wheel tracks left by a passing bike on a sandy or muddy terrain seems like …