# What does this notation mean: $(\chi(D),p^j)$

what does this notation mean:

$$(\chi(D),p^j)$$

where $$\chi(D)$$ - character of the group ring. D - element of the group of ring, p - prime number.

It is looks like a greatest common divisor, but it is not.

I found this notation in the book Addition theorems, H. B. MANN, 1965. https://www.amazon.com/Addition-Theorems-H-B-Mann/dp/047056735X without explanation:

• Why do you think it is not the GCD? That would work in the proof, no? Sep 15 at 11:11
• Yes it is GCD!!! Thank you! Sep 15 at 12:06