On Feige's conjecture

Published
Source
arXiv
Paper number
738
Field
Research
arXiv ID
2607.24528

Key points

  • It constructed a short proof by connecting Vlassis and Thomas's distribution-free p-value result to the random-variable-sum problem in Feige's conjecture.
  • It showed that the probability that the sum of n independent nonnegative random variables, each with expectation 1, is less than n+1 is at least (n/(n+1))^n.
  • Because this lower bound is at least 1/e, it establishes Feige's conjecture, posed in 2004.
  • It shows how resolving Gaffke's conjecture in statistics can lead to a proof of a probability inequality, and GPT-5.6 Sol assisted the proof search.
  • However, the central theorem focuses on Feige's conjecture with threshold n+1, rather than resolving the full range of more general small-deviation parameters.

Paper links

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