It is primarily devoted to functional equations, but also publishes papers in dynamical systems, combinatorics, and geometry.

[2] János Aczél founded the journal in 1968 at the University of Waterloo, in part because of the long publication delays of up to four years in other journals at the time of its founding.

[2][3] It is currently published by Springer Science+Business Media, with Zsolt Páles of the University of Debrecen as its editor in chief.

János Aczél remains its honorary editor in chief.

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