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http://dx.doi.org/10.14317/jami.2015.627

UPPER AND LOWER BOUNDS FOR THE POWER OF EIGENVALUES IN SEIDEL MATRIX  

IRANMANESH, ALI (Department of Mathematics, Faculty of Mathematical Sciences, Tarbiat Modares Univer-sity)
FARSANGI, JALAL ASKARI (Department of Mathematics, Faculty of Mathematical Sciences, Tarbiat Modares Univer-sity)
Publication Information
Journal of applied mathematics & informatics / v.33, no.5_6, 2015 , pp. 627-633 More about this Journal
Abstract
In this paper, we generalize the concept of the energy of Seidel matrix S(G) which denoted by Sα(G) and obtain some results related to this matrix. Also, we obtain an upper and lower bound for Sα(G) related to all of graphs with |detS(G)| ≥ (n - 1); n ≥ 3.
Keywords
Graph eigenvalue; Seidel matrix; Conference matrix; Power of eigenvalue; Nonlinear programming; KKT method;
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