{"total":2,"items":[{"citing_arxiv_id":"2606.17934","ref_index":11,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Multigrid Preconditioning for FEEC using Mass-Lumping and Transforming Smoothers","primary_cat":"math.NA","submitted_at":"2026-06-16T13:43:11+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Develops multigrid preconditioning for FEEC using mass-lumping and transforming smoothers, with stability proofs under mild assumptions and numerical tests on Hodge operators in 2D/3D.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2606.17636","ref_index":99,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"A fast spectral-multigrid Poisson solver in non-Cartesian geometries","primary_cat":"astro-ph.IM","submitted_at":"2026-06-16T07:46:42+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A spectral-multigrid Poisson solver for spherical and cylindrical coordinates achieves second-order accuracy on uniform and logarithmic radial grids with vacuum boundary handling via screening mass and scales to 4096 cores.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null}],"limit":50,"offset":0}