Consortium of Swiss Academic Libraries

On the functional equation x + f ( y + f ( x )) : y + f ( x + f ( y )), II

Rätz, Jürg

In: Aequationes mathematicae, 2015, vol. 89, no. 1, p. 169-186

Consortium of Swiss Academic Libraries

On a functional equation related to projections of abelian groups

Rätz, Jürg

In: aequationes mathematicae, 2005, vol. 70, no. 3, p. 279-297

Consortium of Swiss Academic Libraries

On the functional equation x + f(y + f(x))=y + f(x + f(y))

Rätz, Jürg

In: Aequationes mathematicae, 2013, vol. 86, no. 1-2, p. 187-200

Consortium of Swiss Academic Libraries

On inequalities associated with the Jordan-von Neumann functional equation

Rätz, Jürg

In: Aequationes mathematicae, 2003, vol. 66, no. 1-2, p. 191-200