Good Morning everybody,
I'd like to show the equality
By logarithmic differenciation(using Euler product for zeta), I get
But I can't figure how to reach the last step, to the double sum.
Could someone help me ?
Thank you
Good Morning everybody,
I'd like to show the equality
By logarithmic differenciation(using Euler product for zeta), I get
But I can't figure how to reach the last step, to the double sum.
Could someone help me ?
Thank you