The non-singularity of looped trees and complement of trees with diameter 5

نویسندگان

  • Nirutt Pipattanajinda
  • Yangkok Kim
چکیده

A graph G is said to be singular if its adjacency matrix is singular; otherwise it is said to be non-singular. In this paper, we introduce a class of graphs called looped-trees, and find the determinant and the nonsingularity of looped-trees. Moreover, we determine the singularity or non-singularity of the complement of a certain class of trees with diameter 5 by using the results for looped-trees.

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عنوان ژورنال:
  • Australasian J. Combinatorics

دوره 63  شماره 

صفحات  -

تاریخ انتشار 2015