... Applications 8 (20 02), 1-13.[7] C. Hermite, Sur les fonctions de sept lettres, C. R. Acad. Sci. Paris, 57 (1863),750-757; Oeuvres, vol. 2, 280-288, Gauthier-Villars, Paris, 1908.[8] J. B. Lee and Y. H. ... Fq with a = 0and 0 <n<m<q− 1, then the possible values of m − narem − n =2s;wheres>1, (s, 2p)=1, and 2p<m<n+2p,4s;where (s, 2p)=1,2is;wherei>2, (s, 2p)=1, ... with m − n =2i s, k<i,m ≤ r and s an odd integer such that gcd (s, r) = 1. We write m − n =2k+js with j ≥ 1.So m − n<q− 1 implies that 2js<r. Let us consider N = st0<q− 1witht0ofthe...