Formula:8646

Digital Library of Mathematical Functions ID 26.14.E2

${\displaystyle{\displaystyle\mathop{\mathrm{maj}}(\sigma)=\sum_{\begin{subarray}{c}1\leq j<n\\ \sigma(j)>\sigma(j+1)\end{subarray}}j.}}$

Symbols List

• ${\displaystyle{\displaystyle j}}$: nonnegative integer
• ${\displaystyle{\displaystyle n}}$: nonnegative integer
• ${\displaystyle{\displaystyle\sigma}}$: permutation
• ${\displaystyle{\displaystyle\mathop{\mathrm{maj}}(\sigma)}}$: permutation
 

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