Complexity and kernels for bipartition into degree-bounded induced graphs

Complexity and kernels for bipartition into degree-bounded induced graphs
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二分到有度有界诱导图的复杂性和内核

DOI:
10.1016/j.tcs.2016.11.011
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发表时间:
2014-12
影响因子:
1.1
通讯作者:
Hiroshi Nagamochi
Hiroshi Nagamochi
中科院分区:
计算机科学4区
文献类型:
--
作者:
Mingyu Xiao;Hiroshi Nagamochi

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在本文中,我们研究了将图的顶点集划分为两部分 V A 和 V B 问题的参数化复杂性,使得 V A 归纳出度数最多为 a 的图(分别为 a 正则图),而 V B 归纳出度数最多为 b 的图(分别为 b 正则图)。这两个问题分别称为上界二分问题和正则二分问题。当a=b=0时,这两个问题就成为检查图二分性的多项式可解问题。当a= 0且b= 1时,正则二分成为众所周知的NP难题,称为支配诱导匹配。在本文中,首先我们证明这两个问题对于除a= b= 0之外的任何非负整数a和b都是NP完全的。其次,我们证明了参数k=|时这两个问题的固定参数可处理性。 VA|通过为它们派生几个问题内核及其约束版本,得到二分区一部分的大小。
In this paper, we study the parameterized complexity of the problems of partitioning the vertex set of a graph into two parts V A and V B such that V A induces a graph with degree at most a (resp., an a-regular graph) and V B induces a graph with degree at most b (resp., a b-regular graph). These two problems are called Upper-Degree-Bounded Bipartition and Regular Bipartition, respectively. When a= b= 0, the two problems become the polynomially solvable problem of checking the bipartition of a graph. When a= 0 and b= 1, Regular Bipartition becomes a well-known NP-hard problem, called Dominating Induced Matching. In this paper, firstly we prove that the two problems are NP-complete with any nonnegative integers a and b except a= b= 0. Secondly, we show the fixed-parameter tractability of these two problems with parameter k=| V A| being the size of one part of the bipartition by deriving several problem kernels for them and constrained versions of them.
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期刊: ArXiv
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