Singing, 2

This result is in fact the PRODUCT OF CONVOLUTION of the two following operators characterising the reflection on one part and simple singing on the other. A graph titled Simple Singing Operator or Sing t features two axes. The x-axis represents time t, marked with intervals at 0, zeta, 2 zeta, and 3 zeta. The y-axis represents amplitude, marked with intervals at 0, 1, and 2. The graph includes data points at (zeta, negative k subscript 1 k subscript 2), (2 zeta, (k subscript 1 k subscript 2) squared), and (3 zeta, negative(k subscript 1 k subscript 2) cubed). https://www.w3.org/1999/xlink" xlink:href=" https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003761020/e10523ab-dbe3-4c4f-8f3e-863ae3683950/content/pg215_1.tif "/>