On the functional equation $${\varvec{f}}({\varvec{x}})+{\varvec{f}}({\varvec{y}})=\mathbf{max} \{{\varvec{f}}({\varvec{xy}}),{\varvec{f}}({\varvec{xy}}^{-{\varvec{1}}})\}$$ f ( x ) + f ( y ) = max { f ( x y ) , f ( x y - 1 ) } on groups
Crossref DOI link: https://doi.org/10.1007/s00013-017-1061-0
Published Online: 2017-06-21
Published Print: 2017-09
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Toborg, Imke http://orcid.org/0000-0002-8755-8570
License valid from 2017-06-21