We study the differential uniformity of the Wan-Lidl polynomials over finite fields. A general upper bound, independent of the order of the field, is established. Additional bounds are established in settings where one of the parameters is restricted. In particular, we establish a class of permutation polynomials which have differential uniformity at most 5 over fields of order $3\bmod 4$, irrespective of the field size. Computational results are also given.

翻译：我们研究Wan-Lidl多面体对有限字段的不同统一性,确定了独立于字段顺序的一般上层界限,在某一参数受限的环境中确定了额外的界限,特别是,我们建立了一类变异多面体,在3\bmod 4$的顺序上,最多5美元与3\bmod 4$的顺序有不同统一性,不论字段大小。还给出了计算结果。