OpenAI reports metric Markov cotype two for ℓ₁

The real Banach space ℓ₁ has metric Markov cotype two in the Mendel–Naor Cesàro formulation.

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Understanding the problem

Read the background

The real Banach space ℓ₁ has metric Markov cotype two in the Mendel–Naor Cesàro formulation.

Why it matters

If correct, answers the Mendel–Naor question and resolves Ball’s extension problem for ℓ₁ as a consequence.

What counts as progress

Does ℓ₁ have metric Markov cotype two?

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