Mathematical Inequalities & Applications · Volume 15, Issue 4 Some sharp inequalities involving Seiffert and other means and their concise proofs 15-86 Pages 1007-1017 DOI 10.7153/mia-15-86 Downloads Short PDF Full PDF PNG Authors Wei-dong Jiang Feng Qi Keywords inequality mean monotonicity unified and concise proof sine cosine Seiffert mean Subject classes 26E60 11H60 26A48 26D05 33B10