OpenAI reports vanishing of higher bounded Hochschild cohomology

For every complex von Neumann algebra M and every integer k≥2, each bounded M-valued Hochschild k-cocycle has a bounded M-valued primitive, so Hᵏ_b(M,M)=0.

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Understanding the problem

Read the background

For every complex von Neumann algebra M and every integer k≥2, each bounded M-valued Hochschild k-cocycle has a bounded M-valued primitive, so Hᵏ_b(M,M)=0.

Why it matters

If correct, resolves the higher-degree part of the Kadison–Ringrose cohomology conjecture.

What counts as progress

Does bounded Hochschild cohomology vanish in every higher degree for von Neumann algebras?

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