Kusner's conjecture is false for p > 4

Nathan Xiong

For every real p>4, Xiong constructs an equilateral set of 8m points in ℓₚ^(8m−2) for some power-of-two m, exceeding the proposed dimension-plus-one maximum.

Sources for this record

What was already known

Swanepoel disproved the conjecture for 1<p<2, while Ge, Xu and Zhou proved it for 2≤p≤4. A separate construction refuted it at p=5 and nearby values.

AI involvement AI-centered

Xiong credits GPT-6 Astra with finding the construction; Xiong wrote and explained the published proof.

The acknowledgments identify GPT-6 Astra as finder of the central equilateral-set construction, while Xiong supplied the published proof and presentation.

Importance Major

Closes the remaining p>4 range of Kusner’s equilateral-set conjecture.

Limitations

Xiong explains the Hadamard-block coordinates, distance cases and parameter existence. His responsibility statement does not document a completed proof check, and none was found.

Technical verification Reported

The manuscript proves the claim on paper but documents no separate completed human proof check, machine certificate or exact computation; Reported is the evidence default.

Human understanding Full

Xiong explains the front/back coordinate design, all pairwise distance cases and the parameter-existence step for every p>4.

Correction and publication history