(integer multiplication, not matrix multiplication, right?)
I thought the nlogn^.9999 was for fft
It was for both fft and integer multiplication (different bounds but both slightly under nlogn)
Re:OpenAI Withdraws 3 Math Papers
by AnotherGoodName on Thursday October 08, 2026 @02:00PM
(#50009463)
It was both actually.
The proof explicitly hand-waves some complexity by assuming lookup tables to avoid some calculations which isn’t actually possible since it’s dealing with such large numbers and it only works on incredibly large numbers.
The complexity being so close to nlogn and the handwaving by assuming lookup tables in parts should be a really really obvious smell. At the very least worthy of holding back from the broader announcement.
It us proven in lean as-is with these assumptions and it’s not one of the ones retracted but those assumptions are doing some heavy lifting. I think it’s worth adding back in those ‘by using a lookup tables for x’ complexities and seeing if we really are below nlogn on that one.