Approximations and expansions, spline functions, special functions, inequalities, means, convex functions of several variables.
Selected Publications
Inequalities and bounds for generalized complete elliptic integrals, J. Math. Anal. Appl. 373 (2011), 203-213.
Inequalities and bounds for elliptic
integrals, Part I: (with H. Kazi), J. Approx. Theory 146 (2007), 212-226; Part 2: Contemp. Math. 471 (2008), 127-138.
Bounds for symmetric elliptic
integerals, J. Approx. Theory 122 (2003), 249-259.
Inequalities involving modified Bessel functions of the first kind, Part1: J. Math. Anal. Appl. 171 (1992), 532-536. Part 2: (with A. Baricz), J. Math. Anal. Appl. 332 (2007), 265-271.
Inequalities involving Stolarsky and Gini means (with J. Sándor), Math. Pannon. 14 (2003), 29-44.
The weighted logarithmic mean,
J. Math. Anal. Appl. 188 (1994), 885-900.
Inequalities involving multivariate convex functions, Part 1: (with J. Pečarić), J. Math. Anal. Appl. 137 (1989), 541-549; Part 2: Proc. Amer. Math. Soc. 109 (1990), 965-974; Part 3: Rocky Mountain J. Math. 42 (2012), 251-256; Part 4: J. Math. Inequal. 6 (2012), 299 - 305.