Utilize este identificador para referenciar este registo: `http://hdl.handle.net/10400.1/1017`
 Título: Effective computability of solutions of differential inclusions-the ten thousand monkeys approach Autor: Collins, PieterGraça, Daniel Palavras-chave: Ordinary differential equationsLipschitz conditionDifferential inclusionsSemicomputabilityComputable analysis Data: 2009 Resumo: In this note we consider the computability of the solution of the initial- value problem for ordinary di erential equations with continuous right- hand side. We present algorithms for the computation of the solution using the \thousand monkeys" approach, in which we generate all possi- ble solution tubes, and then check which are valid. In this way, we show that the solution of a di erential equation de ned by a locally Lipschitz function is computable even if the function is not e ectively locally Lips- chitz. We also recover a result of Ruohonen, in which it is shown that if the solution is unique, then it is computable, even if the right-hand side is not locally Lipschitz. We also prove that the maximal interval of existence for the solution must be e ectively enumerable open, and give an example of a computable locally Lipschitz function which is not e ectively locally Lipschitz. Peer review: yes URI: http://hdl.handle.net/10400.1/1017 Versão do Editor: http://www.jucs.org/jucs_15_6/effective_computability_of_solutions Aparece nas colecções: FCT2-Artigos (em revistas ou actas indexadas)

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