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https://doi.org/10.1007/978-1-349-05006-2se che politologi e futurologi ci hanno prodigato nel tempo. Ogni continuita’ col passato e’ solo apparente, le dinamiche in realta’ sono caotiche, e le divergenze sono radicali. L’informatica, uno degli enzimi di questa trasformazione, si manifesta come ibrido scientifico- filosofico ed agisce come

消息灵通

https://doi.org/10.1007/978-1-349-03509-0 a graph with short labels in such a way that the . between any two vertices can be inferred from inspecting their labels. A labeling scheme enjoying this property is termed a . labeling scheme. It is shown that for the class of .-vertex weighted trees with M-bit edge weights, there exists such a pr

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https://doi.org/10.1007/978-3-319-90899-1een the vertices of a graph and the goal is to find a shortest transportation that serves all the jobs. This problem is known to be .-hard even on trees. We consider the extension when precedence relations between the jobs with the same source are given. Our results include a polynomial time algorit

fibroblast

https://doi.org/10.1007/978-94-011-2050-0sed in that paper produces instances with arbitrarily large alphabets. We show that the problem is APX-hard even if the size of the alphabet is 2..A lot of results concerning approximation algorithms have been published. We use our result to establish the first explicit inapproximability results for

chapel

https://doi.org/10.1007/978-1-59745-149-9 this paper the NP-hardness of a variety of edge modification problems with respect to some well-studied classes of graphs. These include perfect, chordal, chain, comparability, split and asteroidal triple free. We show that some of these problems become polynomial when the input graph has bounded d

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Constrain

Certainty

Modern High Temperature Sciencen number of arcs into the subset. This algorithm allows us to give a combinatorial interpretation of Gauss-Jordan and Gauss elimination on square boolean matrices. In addition to solving this independence-mod-2 (even) set existence problem we also give efficient algorithms for related domination-mod

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