Let Fq be a finite field of q elements of characteristic p. N. M. Katz and Z. Zheng have shown the uniformity of distribution of the arguments arg G (a, χ) of all (q - 1)(q - 2) nontrivial Gauss sums ¶
$G(a, \chi) = \sum_{x \in {\mathbf F}_q} \chi(x) \exp(2 \pi i \mathrm{Tr}(ax)/p),$
¶ where χ is a non-principal multiplicative character of the multiplicative group Fq* and Tr(z) is the trace of z $\in$ Fq into Fp. ¶ Here we obtain a similar result for the set of arguments arg G(a, χ) when a and χ run through arbitrary (but sufficiently large) subsets ${\mathcal A}$ and ${\mathcal X}$ of Fq* and the set of all multiplicative characters of Fq*, respectively.