In some previous works, P. Duarte and I have developed an abstract scheme of proving continuity prop

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Consideramos um processo estocástico estacionário discreto e sobre um alfabeto finito ou enumeráv

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Considere-se um polígono convexo. Dado um ponto x no complementar  do polígono existe uma única

In the study of pattern formation in symmetric physical systems a 3-dimensional structure in thin do