Let be the integral:
Int(-oo,oo)dx f(x)exp(iux) I would like to know if there is any method to
evaluate it for u-->oo
-Stationary phase method:=can't be applied since y=x has no "stationary points" for any real x.
- by the way if we had f(x)=g(x)+ih(x) could the integral above be evaluated splitting it into the real and complex part?..thanks.