Mathematical Inequalities & Applications · Volume 24, Issue 1 Mean-type mappings and invariance principle 24-15 Pages 209-217 DOI 10.7153/mia-2021-24-15 Downloads Short PDF Full PDF PNG Authors Janusz Matkowski Paweł Pasteczka Keywords means mean-type mapping invariant mean functional equation iteration orbit Subject classes 26E60 39B22 39B12