Does block size matter in randomized block Krylov low-rank approximation? Tyler Chen, Ethan N Epperly, Raphael A Meyer, and 2 more authors arXiv preprint arXiv:2508.06486, 2025 HTML The Goldilocks Problem in Low-Rank Approximations Akash Gopinath Rao New York University Tandon School of Engineering, 2024 HTML