From Few Components to an Eulerian Graph by Adding Arcs

From Few Components to an Eulerian Graph by Adding Arcs
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通过添加弧从少量组件到欧拉图

DOI:
10.1007/978-3-642-25870-1_28
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发表时间:
2011
期刊:
Oper. Res. Lett.
影响因子:
--
通讯作者:
Mathias Weller
Mathias Weller
中科院分区:
--
文献类型:
--
作者:
Manuel Sorge;René van Bevern;R. Niedermeier;Mathias Weller

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Eulerian扩展(EE)是通过添加最低总成本的电弧来制造具有电弧加权的多式欧拉(Eulerian)的问题。 EE是NP硬化的,相对于ARC添加的数量,已显示固定参数。在回答一个开放问题的过程中,我们表明EE相对于“基础无向多数中的连接组件的数量”和“ indeg(v) - ofteg(v) - Outdeg(ofteg)的组合参数的组合,EE是固定参数的固定参数( v)在该值为正的输入多数中的所有顶点V上。”此外,我们表明EE不太可能接受此参数组合和参数“ ARC添加数”的多项式大小问题内核。
Eulerian Extension (EE) is the problem to make an arc-weighted directed multigraph Eulerian by adding arcs of minimum total cost. EE is NP-hard and has been shown fixed-parameter tractable with respect to the number of arc additions. Complementing this result, on the way to answering an open question, we show that EE is fixed-parameter tractable with respect to the combined parameter "number of connected components in the underlying undirected multigraph" and "sum of indeg(v) - outdeg(v) over all vertices v in the input multigraph where this value is positive." Moreover, we show that EE is unlikely to admit a polynomial-size problem kernel for this parameter combination and for the parameter "number of arc additions".
欧拉扩展及其在无等待流水作业调度中的应用
DOI: 10.1007/s10951-011-0241-1
发表时间: --
影响因子: 2
作者:
W. Höhn;T. Jacobs;N. Megow.
通讯作者: N. Megow.