J4 ›› 2014, Vol. 13 ›› Issue (12): 21-25.

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Restricted Node Multicut Problem in Trees

  

  1. College of Mathematics and Statistics, Zhaotong College, Zhaotong, Yunnan 657000, China
  • Received:2014-05-07 Online:2014-12-15 Published:2014-12-15

Abstract:

The problem of cut set holds an important position in graph theory and combinatorial optimization and restricted node
multicut is a significant problem in cut set. And restricted node multicut problem in trees is worth studying. The paper first explains
that the node multicut problem is hard, then designs an algorithm with the approximate value of 2 and time complexity of by applying
complementary slackness conditions in linear programming theory, and finally further explains the solution from the algorithm is a halfinteger.

Key words: restricted node multicut, approximation algorithm, complementary slackness conditions

CLC Number: