MATHEMATICAL INEQUALITIES & APPLICATIONS, cilt.19, sa.1, ss.117-125, 2016 (SCI-Expanded)
In this paper, improving a famous result of Wolkowicz and Styan for the GCD matrix (S-n) and the LCM matrix [S-n] defined on S-n = {1,2,..., n}, we present new upper and lower bounds for the smallest and the largest eigenvalues of (S-n) and [S-n] in terms of particular arithmetical functions.