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只看該作者 · 發(fā)表于 2025-3-25 19:22:01

,An Equivalent Version of the Caccetta-H?ggkvist Conjecture in an Online Load Balancing Problem, a method by Crescenzi . (2004). We show that an exact analysis of their competitive ratio on certain “uniform” instances would resolve a fundamental conjecture by Caccetta and H?ggkvist (1978). The conjecture is that any digraph on . nodes and minimum outdegree . must contain a directed cycle invol

只看該作者 · 發(fā)表于 2025-3-25 22:48:13

只看該作者 · 發(fā)表于 2025-3-26 02:56:59

只看該作者 · 發(fā)表于 2025-3-26 07:52:40

只看該作者 · 發(fā)表于 2025-3-26 12:24:10

Moderner Tunnelbau bei der Münchner U-Bahnphs. (A set . of vertices of a graph . is called (.,.). if for every vertex .?∈?., |.?∩?.(.)|?∈?., and for every .???., |.?∩?.(.)|?∈?., where . and . are sets of nonnegative integers and .(.) denotes the open neighborhood of the vertex . in ..) It was known that for any two nonempty finite sets . an

只看該作者 · 發(fā)表于 2025-3-26 15:28:29

https://doi.org/10.1007/978-3-322-95052-9ch a way that (.)?∈?. if and only if |..?∩?..|?≥?min (..,..). No algorithm for recognizing tolerance graphs in general is known. In this paper we present an .(.?+?.) algorithm for recognizing tolerance graphs that are also bipartite, where . and . are the number vertices and edges of the graph, resp

只看該作者 · 發(fā)表于 2025-3-26 18:57:18

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