Stellar mass functions of galaxies at low density (orange symbols) and high density (violet symbols) in three different redshift bins, namely , , and . Right panels show the GSMFs of active galaxies, while central panels refer to passive ones. The GSMFs of the whole sample in the same z-bins are shown on the left. In each plot, filled (open) circles represent the 1 /V_max points above (below) the completeness mass ℳ_lim (vertical dot line), with error bars (shown only above ℳ_lim) that account for Poisson uncertainty. In the total GSMFs, the uncertainty due to cosmic variance is also added in the error bars. (In some cases, the error bar is smaller than the size of the points.) Solid lines represent the Schechter functions estimated through the STY method, with the 1σ uncertainty highlighted by a shaded area. With this estimator, all the Schechter parameters are free, except at , where α is fixed to the value found in the previous z-bin (see Table 2). To compare the shape of mass functions in LD and HD, we renormalise them in such a way that their number density (ρ_N) is equal to unity when we integrate the GSMF at ℳ > ℳ_lim.