- #1
Pere Callahan
- 586
- 1
Hello all,
I am studying some problems in Free Probability and need to prove a relation between the Catalan numbers
[tex]C_n = \frac{1}{n+1}\left(\stackrel{2n}{n}\right)[/tex]
The relation reads:
[tex]1 = \sum_{l=1}^{k}{(-1)^{l-1}C_{l-1}\left(\stackrel{l+k-1}{k-l}\right)}\quad\quad\forall\quad 1\leq k\in\mathbb{N}[/tex]
Does anybode have an idea how to prove this? Numerically, I convinced myself that it is true for [tex]n\leq 100 000[/tex] or so
I tried induction but it didn't work out.
Thanks
Pere
Btw.: Is there a better way to display binomial coefficients...? I used \stackrel ...
I am studying some problems in Free Probability and need to prove a relation between the Catalan numbers
[tex]C_n = \frac{1}{n+1}\left(\stackrel{2n}{n}\right)[/tex]
The relation reads:
[tex]1 = \sum_{l=1}^{k}{(-1)^{l-1}C_{l-1}\left(\stackrel{l+k-1}{k-l}\right)}\quad\quad\forall\quad 1\leq k\in\mathbb{N}[/tex]
Does anybode have an idea how to prove this? Numerically, I convinced myself that it is true for [tex]n\leq 100 000[/tex] or so
I tried induction but it didn't work out.
Thanks
Pere
Btw.: Is there a better way to display binomial coefficients...? I used \stackrel ...
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