TY - RPRT TI - Theory and numerics of subspace approximation of eigenvalue problems AU - Cheung, Siu Wun [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)] (ORCID:0000000285038395) AU - Choi, Youngsoo [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)] (ORCID:0000000187977970) AU - Chung, Seung Whan [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)] (ORCID:0000000302501549) AU - Fattebert, Jean-Luc [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000214556160) AU - Kendrick, Coleman [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)] (ORCID:0000000188089844) AU - Osei-Kuffuor, Daniel [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)] (ORCID:0000000261116205) PY - 2025 DO - 10.1016/j.amc.2025.129722 UR - https://www.osti.gov/biblio/3002687 ID - 3002687 ER -