- #1
esisk
- 44
- 0
Hi,
I am trying to prove something, but I need some kind of a result on the coefficients of a power series.
Suppose f(z) has a power series expansion about zero (converges). What can I say about the sum of the absolute values of the coefficients? Ideally I would like to show this sum is less than 1.
thank you
I am trying to prove something, but I need some kind of a result on the coefficients of a power series.
Suppose f(z) has a power series expansion about zero (converges). What can I say about the sum of the absolute values of the coefficients? Ideally I would like to show this sum is less than 1.
thank you