I am reading the book "Opera de Cribro - John B. Friedlander, Henryk Iwaniec" and in pages 5,6 I do not understand why and how they chose $X$, $A(x)$, $A_d(x)$ and, $g(p)$ and $r_d(x)$.
any hints will be appreciated.
Some questions about examples in "sieve methods" in the book "Opera de Cribro" by Friedlander, and Iwaniec
Some questions about examples in "sieve methods" in the book "Opera de Cribro" by Friedlander, Iwaniec
I am reading the book "Opera de Cribro - John B. Friedlander, Henryk Iwaniec" and in pages 5,6 I do not understand why and how they chose $X$, $A(x)$, $A_d(x)$ and $g(p)$.
any hints will be appreciated.
Some questions about examples in "sieve methods" in the book "Opera de Cribro" by Friedlander and Iwaniec
I am reading the book "Opera de Cribro - John B. Friedlander, Henryk Iwaniec" and in pages 5,6 I do not understand why and how they chose $X$, $A(x)$, $A_d(x)$, $g(p)$ and $r_d(x)$.
any hints will be appreciated.