,
O-joung Kwon
,
Sang-il Oum
Creative Commons Attribution 3.0 Unported license
For a non-negative integer 𝓁, a graph G is an 𝓁-leaf power of a tree T if V(G) is equal to the set of leaves of T, and distinct vertices v and w of G are adjacent if and only if the distance between v and w in T is at most 𝓁. Given a graph G, 3-Leaf Power Deletion asks whether there is a set S ⊆ V(G) of size at most k such that G\S is a 3-leaf power of some treeT. We provide a polynomial kernel for this problem. More specifically, we present a polynomial-time algorithm for an input instance (G,k) to output an equivalent instance (G',k') such that k'≤ k and G' has at most O(k^14) vertices.
@InProceedings{ahn_et_al:LIPIcs.MFCS.2020.5,
author = {Ahn, Jungho and Eiben, Eduard and Kwon, O-joung and Oum, Sang-il},
title = {{A Polynomial Kernel for 3-Leaf Power Deletion}},
booktitle = {45th International Symposium on Mathematical Foundations of Computer Science (MFCS 2020)},
pages = {5:1--5:14},
series = {Leibniz International Proceedings in Informatics (LIPIcs)},
ISBN = {978-3-95977-159-7},
ISSN = {1868-8969},
year = {2020},
volume = {170},
editor = {Esparza, Javier and Kr\'{a}l', Daniel},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.MFCS.2020.5},
URN = {urn:nbn:de:0030-drops-126763},
doi = {10.4230/LIPIcs.MFCS.2020.5},
annote = {Keywords: 𝓁-leaf power, parameterized algorithms, kernelization}
}