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13 votes

Identity involving Pochhammer symbol

You had several nice answers proving the identity from scratch. Let me point out that what you call "Pochhammer symbols identities" is also known as hypergeometric identities. If you ...
Hjalmar Rosengren's user avatar
8 votes

Identity involving Pochhammer symbol

[Hopefully this doesn’t end up being only a reformulation of the other solutions.] The $(-1)^m\frac1{m!(s-m)!}$ makes me think about discrete derivatives: if you define $(\Delta f)(x)=f(x+1)-f(x)$, ...
Corentin B's user avatar

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