Elon Musk
@elonmusk
Grok only gets better from here
Paata Ivanisvili@PI010101· 9 juil. 2026Grok 4.5 just constructed an explicit counterexample to hypercontractivity for the Poisson semigroup (the square root of the Laplace–Beltrami operator) on the 4-sphere.
Back in 2021, with Rupert Frank we proved that hypercontractivity holds in dimensions
01:10 · 10 juillet 2026 · 926,3 k vues
769
470
3,3 k