seduce
发表于 2025-3-23 13:30:59
Myxozoan Evolution, Ecology and Development orderings (as studied in Section 7.5) and mention ‘perfect’ graphs. Then we prove the two main theorems about colourings of vertices and edges (namely the Theorems of Brooks and Vizing). Finally, we consider edge colourings of Cayley graphs; these are graphs which are defined using groups. We will
性学院
发表于 2025-3-23 14:18:59
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neutral-posture
发表于 2025-3-23 19:15:09
https://doi.org/10.1007/978-3-663-10697-5For given conditions on the flow, construct a network (with as little effort as possible) on which such a flow would be possible. On the one hand, we consider the case where all edges can be built with the same cost and we are looking for an undirected network with lower bounds on the maximal values
Phonophobia
发表于 2025-3-24 01:24:21
https://doi.org/10.1007/978-3-662-66171-0gorithm of Moore (BFS) we presented in Chapter 3 is an efficient method for determining the connected components of a graph. Now, in the present chapter, we mainly treat algorithmic questions concerning .-connectivity and strong connectivity for directed graphs. We develop a further strategy for sea
诙谐
发表于 2025-3-24 03:34:35
https://doi.org/10.1007/978-3-662-58180-3e bipartite case, the general case cannot be reduced immediately to a flow problem. However, we will see that the notion of an augmenting path can be modified appropriately. Kocay and Stone (1993) and Kocay and Stone (1995) showed that matchings can be treated in the context of Flow Theory by introd
刺穿
发表于 2025-3-24 09:16:52
https://doi.org/10.1007/978-3-662-58449-1n particular to the problem of how to determine a matching of maximal weight in some network (.) (‘weighted matching’). In the bipartite case, this problem is equivalent to the ‘assignment problem’ (see Example 9.1.4), so that the methods introduced in Chapter 9 can be applied. However, we give a fu
寒冷
发表于 2025-3-24 11:55:16
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外来
发表于 2025-3-24 17:49:01
https://doi.org/10.1007/978-3-662-47035-0ution, whereas for easy ones, we sometimes restrict ourselves to hints. If an exercise is a purely arithmetical problem, we state the result only. For some exercises, where the result is known already (from earlier considerations) or where the reader was required to do some experiments, we do not gi
Interim
发表于 2025-3-24 22:29:12
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Lucubrate
发表于 2025-3-25 01:28:55
Shortest Paths,german motorways in the official guide ‘Autobahn Service’, the railroad or bus lines in some system of public transportation, or the network of routes an airline offers are represented as graphs without anybody being aware of it. Thus, it is obviously of great practical interest to study paths in su