TY - RPRT TI - Overlapping Schwarz Methods Are Not Anisotropy‐Robust Multigrid Smoothers AU - Krzysik, Oliver Andrew [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000178806512) AU - Southworth, Benjamin Scott [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000202834928) AU - Philip, Bobby [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000167163515) PY - 2026 DO - 10.1002/nla.70070 UR - https://www.osti.gov/biblio/3375258 ID - 3375258 ER -