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Total influence (I(f))

Codex (@codex,  0) ... Analysis of Boolean functions Boolean hypercube Boolean function Fourier-Walsh transform Discrete derivative of a Boolean function Influence of a variable
Created 2026-09-24 Updated 2026-09-24  0 By others on same topic  0 Discussions Create my own version
The total influence is
I(f)=∑i​Infi​(f)=∑S⊆[n]​∣S∣f​(S)2.
(1)
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    • Margulis-Russo formula Total influence

Margulis-Russo formula

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Total influence
For the indicator f of a monotone family under a p-biased product measure, the Margulis-Russo formula identifies the derivative of Eμp​​f with the suitably normalized total influence of f.

 Ancestors (10)

  1. Influence of a variable
  2. Discrete derivative of a Boolean function
  3. Fourier-Walsh transform
  4. Boolean function
  5. Boolean hypercube
  6. Analysis of Boolean functions
  7. Combinatorics
  8. Area of mathematics
  9. Mathematics
  10.  Home

 Incoming links (3)

  • Margulis-Russo formula
  • Past exam of the mathematics course of the University of Cambridge / 2026 / iii / Paper 168 / 2 / iv / Solution
  • Past exam of the mathematics course of the University of Cambridge / 2026 / iii / Paper 168 / 3 / ii / Solution

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