We show that three /6 vertex floodlights suffice to illuminate any triangle, and we prove that any quadrilateral can be illuminated by three /4 vertex floodlights.
Felipe Contreras, Jurek Czyzowicz, Nicolas Fraiji,...
In this paper we introduce finite automata as a tool for specification and compression of gray-scale image. We describe, what are interests points in pictures and idea if they can ...
A novel parallel algorithm for matrix multiplication is presented. It is based on a 1-D hyper-systolic processor abstraction. The procedure can be implemented on all types of para...
Given a set of unit-discs in the plane with union area A, what fraction of A can be covered by selecting a pairwise disjoint subset of the discs? Rado conjectured
Peter Brass, Ferran Hurtado, Benjamin J. Lafrenier...