  A generalization of the Chu-Vandermonde convolution is presented and proved
with the integral representation method. This identity can be transformed into
another identity, which has as special cases two known identities. Another
identity that is closely related to this identity is presented and proved.
Using the modified geometric series from another paper, some closely related
identities are listed. Some corresponding harmonic number identities are
derived, which have as special cases some known harmonic number identities. For
one combinatorial sum a recursion formula is derived and used to compute a few
examples.
