Mathematical Inequalities & Applications · Volume 9, Issue 1 Some operations preserving log-concavity of nonnegative functions 09-07 Pages 63-73 DOI 10.7153/mia-09-07 Downloads Short PDF Full PDF PNG Authors Vadim E. Levit Eugen Mandrescu Keywords log-concave k-log-concave concave k,[p,q]-concave Subject classes 26A51 05A20 26D99