The equation f(xy) = f(x)h(y) + g(x)f(y) and representations on C2
A New Simple Family of Non-periodic Tilings With Square Tiles
A generalization of a theorem of von Neumann
General hyperstability criteria for Jensen-type equations
Ideals on quantales, prime ideals and spectrum topology
Prefixes of bargraph paths
Characterization of the Bernoulli polynomials via the Raabe functional equation
Correction to: There is at most one continuous invariant mean
General criteria for hyperstability of Cauchy-type equations