The method of periodic projections consists in iterating projections onto in closed convex subsets of a Hilbert space according to a periodic sweeping strategy. In the presence of in m >= 3 sets, a long-standing question ...

We consider Dykstra’s alternating projection method when it is used to find the projection onto polyhedral cones of the form {x Î H : á vi, xñ £ 0} where H is a real Hilbert space and á vi, vjñ > 0, i, j = 1, ..., n. Based ...

Recentemente, algoritmos baseados em circuncentros foram aplicados para resolver problemas gerais de viabilidade convexa. Para superar computações custosas de projeções e reflexões em conjuntos convexos, nós apresentamos ...

As the number and complexity of visualization techniques have grown, it has be come progressively more difficult to make a decision as to which technique to employ for any given situation or application. A particular case ...