Obtaining split graphs by edge contraction

We study the parameterized complexity of the following Split Contraction problem: Given a graph G, and an integer k as parameter, determine whether G can be modified into a split graph by contracting at most k edges. We show that Split Contraction can be solved in FPT time 2O(k2)n5, but admits no po...

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Vydané v:Theoretical computer science Ročník 607; s. 60 - 67
Hlavní autori: Guo, Chengwei, Cai, Leizhen
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Elsevier B.V 23.11.2015
Predmet:
Complexity
Contraction
Edge contraction
FPT algorithm
Graph theory
Graphs
Incompressibility
Integers
Kernels
Parameterized complexity
Polynomials
Split graphs
Split graphs
FPT algorithm
Edge contraction
Incompressibility
Parameterized complexity
ISSN:0304-3975, 1879-2294
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Shrnutí:We study the parameterized complexity of the following Split Contraction problem: Given a graph G, and an integer k as parameter, determine whether G can be modified into a split graph by contracting at most k edges. We show that Split Contraction can be solved in FPT time 2O(k2)n5, but admits no polynomial kernel unless NP⊆coNP/poly.
Bibliografia:ObjectType-Article-1
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content type line 23
ISSN:0304-3975
1879-2294
DOI:10.1016/j.tcs.2015.01.056