OpenAI reports pointwise multiple ergodic convergence for mixing transformations

For every invertible mixing probability-preserving transformation and every fixed finite tuple of bounded measurable functions, consecutive multiple ergodic averages converge almost everywhere, along all positive averaging lengths, to the product of the functions’ integrals.

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OpenAI reports pointwise multiple ergodic convergence for mixing transformations

  • Mathematics

For every invertible mixing probability-preserving transformation and every fixed finite tuple of bounded measurable functions, consecutive multiple ergodic averages converge almost everywhere, along all positive averaging lengths, to the product of the functions’ integrals.

AI involvementAI-led
ImportanceMajor
Technical verificationReported
Human understandingFew

Understanding the problem

Read the background

For every invertible mixing probability-preserving transformation and every fixed finite tuple of bounded measurable functions, consecutive multiple ergodic averages converge almost everywhere, along all positive averaging lengths, to the product of the functions’ integrals.

Why it matters

If correct, establishes almost-everywhere convergence for all finite lengths under ordinary mixing alone.

What counts as progress

Do all consecutive multiple ergodic averages converge pointwise for mixing transformations?

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