Left panel: the cumulative mass functions computed at z = 6 for fuzzy DM models with different values of the wavelike DM particle mass ﹩{m}_{22}={m}_{\psi }/{10}^{-22}\,\,\mathrm{eV}﹩. The shaded areas correspond to the observed number density of galaxies with ﹩{M}_{\mathrm{UV}}\leqslant -12.5﹩ within within the 1-σ, 2-σ, and 3-σ confidence levels. Right panel: the maximum value ﹩\overline{\phi }﹩ (including the theoretical uncertainties) of the predicted number density of DM halos ϕ at z = 6 as a function of m₂₂. The upper shaded areas represent the observed number density of galaxies with ﹩{M}_{\mathrm{UV}}\leqslant -12.5﹩ within the 1-σ, 2-σ, and 3-σ confidence levels.