“…Recently, many authors have considered this topic and generalised Dyakonov's results to quasiconformal mappings and real harmonic functions in several variables for some special majorant ω(t) = t α , where α > 0 (see [1,15,23,26,27,[29][30][31]). For the general majorant ω to holomorphic mappings and pluriharmonic mappings in the unit ball, see [7,15,33].…”