Let φ(n) denote the Euler-totient function, we study the distribution of solutions of φ(n) ≤ x in arithmetic progressions, where n ≡ l(mod q) and an asymptotic formula was obtained by Perron formula.
基金Supported by the National Natural Science Foundation of China(11271249) Supported by the Scientific and Technological Research Program of Chongqing Municipal Education Commission(1601213) Supported by the Scientific Research Program of Yangtze Normal University(2012XJYBO31)
文摘Let φ(n) denote the Euler-totient function, we study the distribution of solutions of φ(n) ≤ x in arithmetic progressions, where n ≡ l(mod q) and an asymptotic formula was obtained by Perron formula.