Karimian, R., Mohades, A., & Lederer, J. (2026). How Many Directions Must a Truncated Diffusion Sampler Retain? Matching Bounds Under Power-Law Spectra. https://omanscience.com/en/articles/how-many-directions-must-a-truncated-diffusion-sampler-retain-matching-bounds-under-power-law-spectra