# convergent series where not only$~a_n$ but also $na_n$ tends to 0

## Primary tabs

Keywords:
decreasing
Synonym:
Olivier's theorem
Type of Math Object:
Theorem
Major Section:
Reference
Groups audience:

## Mathematics Subject Classification

### A_n pro a_n

Hi experts, how could I get "a_n" instead of "A_n" in the title of
http://planetmath.org/encyclopedia/ConvergentSeriesWhereNotOnlyA_nButAls... ?
I have made many trials =o(
Jussi

### Re: A_n pro a_n

I believe I just fixed it. But I have no idea why it works. Looks like a bug to me.

Instead of "only $a_n$" I wrote "only$~a_n$".

### Re: A_n pro a_n

Hey Roger,
You have solved the problem!! Thank you very much!
The solution is quite unconventional -- especially I wonder the omitted space in "only$~a_n$".
Best regards,
Jussi