Dimension-free weak-type bound for the vector Riesz transform

Dimension-free constant two

Model / AI: GPT-5.6 Sol, Claude Opus 5, Danus, Rethlas

Ouyang, Spector and Stockdale report that models developed proof strategies in dialogue with them. The humans redirected a complicated initial route, checked and rewrote the final argument, which proves a dimension-independent weak-type constant at most two and answers Stein's 1986 question.

Source read 2026-09-08. Read the abstract and detailed collaboration account in the source record. No formal or independent check was found.

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