MathDB
Miklos Schweitzer 1949_7

Source:

October 2, 2008
Gaussfunctionintegrationtrigonometrycomplex numberscomplex analysiscomplex analysis unsolved

Problem Statement

Find the complex numbers z z for which the series 1 \plus{} \frac {z}{2!} \plus{} \frac {z(z \plus{} 1)}{3!} \plus{} \frac {z(z \plus{} 1)(z \plus{} 2)}{4!} \plus{} \cdots \plus{} \frac {z(z \plus{} 1)\cdots(z \plus{} n)}{(n \plus{} 2)!} \plus{} \cdots converges and find its sum.