Feedback vertex sets in star graphs

نویسندگان

  • Fu-Hsing Wang
  • Yue-Li Wang
  • Jou-Ming Chang
چکیده

In a graph G= (V ,E), a subset F ⊂ V (G) is a feedback vertex set of G if the subgraph induced by V (G) \ F is acyclic. In this paper, we propose an algorithm for finding a small feedback vertex set of a star graph. Indeed, our algorithm can derive an upper bound to the size of the feedback vertex set for star graphs. Also by applying the properties of regular graphs, a lower bound can easily be achieved for star graphs.  2003 Elsevier B.V. All rights reserved.

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عنوان ژورنال:
  • Inf. Process. Lett.

دوره 89  شماره 

صفحات  -

تاریخ انتشار 2004