On efficient absorbant conjecture in generalized De Bruijn digraphs

2016 ◽  
Vol 94 (5) ◽  
pp. 922-932 ◽  
Author(s):  
Kuo-Hua Wu ◽  
Yue-Li Wang ◽  
Ton Kloks
Keyword(s):  
Author(s):  
Yosuke Kikuchi ◽  
Shingo Osawa ◽  
Yukio Shibata
Keyword(s):  

2001 ◽  
Vol 77 (5-6) ◽  
pp. 269-275 ◽  
Author(s):  
Hiroyuki Kawai ◽  
Naohiro Fujikake ◽  
Yukio Shibata

Networks ◽  
1988 ◽  
Vol 18 (1) ◽  
pp. 27-38 ◽  
Author(s):  
D. Z. Du ◽  
F. K. Hwang
Keyword(s):  

2017 ◽  
Vol 09 (05) ◽  
pp. 1750062
Author(s):  
Jyhmin Kuo ◽  
Hung-Lin Fu

A set of vertices of a graph whose removal leaves an acyclic graph is referred as a decycling set, or a feedback vertex set, of the graph. The minimum cardinality of a decycling set of a graph [Formula: see text] is referred to as the decycling number of [Formula: see text]. For [Formula: see text], the generalized de Bruijn digraph [Formula: see text] is defined by congruence equations as follows: [Formula: see text] and [Formula: see text]. In this paper, we give a systematic method to find a decycling set of [Formula: see text] and give a new upper bound that improve the best known results. By counting the number of vertex-disjoint cycles with the idea of constrained necklaces, we obtain new lower bounds on the decycling number of generalized de Bruijn digraphs.


2005 ◽  
Vol 26 (8) ◽  
pp. 1191-1206 ◽  
Author(s):  
Aiping Deng ◽  
Yaokun Wu

2017 ◽  
Vol 25 ◽  
pp. 77-85 ◽  
Author(s):  
Alexander Chane Shiau ◽  
Tzong-Huei Shiau ◽  
Yue-Li Wang
Keyword(s):  

2000 ◽  
Vol 218 (1-3) ◽  
pp. 199-208 ◽  
Author(s):  
Yukio Shibata ◽  
Toru Hasunuma ◽  
Sanae Fukuda
Keyword(s):  

2015 ◽  
Vol 338 (8) ◽  
pp. 1501-1508 ◽  
Author(s):  
Yanxia Dong ◽  
Erfang Shan ◽  
Liying Kang

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