# Divergences in phsyics

1. Mar 26, 2006

### eljose

more than a proper topic this is a question...my question is if all the divergences that appear in QFT are due to integrals in the form:

$$\int_{0}^{\infty}dkk^{m}$$

with m=-1 (logarithmic),0,1,2,3,4,5,..........

if not i think that for any other divergences you could express them as:

$$\int_{0}^{\infty}dkF(k)= \sum_{r=0}^{\infty}a(r)\int_{0}^{\infty}dkk^{r}$$

r=0,1,2,3,4,5,......... and a(r) the coefficients of the series expansion for the function F(k) of course K here is the "momentum" modulus $$p=\hbar{k}$$