{"id":"W1966683893","doi":"10.1016/j.aop.2006.07.005","title":"Geometric obstruction of black holes","year":2006,"lang":"en","type":"article","venue":"Annals of Physics","topic":"Black Holes and Theoretical Physics","field":"Physics and Astronomy","cited_by":8,"is_retracted":false,"has_abstract":false,"ca_institutions":"Perimeter Institute","funders":"","keywords":"Physics; Completeness (order theory); Curvature; Isotropy; Theoretical physics; Homogeneous; Causal structure; Classical mechanics; Pure mathematics; Mathematical physics; Mathematical analysis; Geometry; Quantum mechanics; Statistical physics; Mathematics","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0008989906,0.0007640706,0.001124275,0.002329278,0.002537741,0.002780593,0.0009245542,0.001486213,0.007849934],"category_scores_gemma":[0.002457781,0.00042999,0.0008148514,0.00106018,0.004990195,0.004690559,0.003339929,0.002568025,0.0006501349],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001272482,"about_ca_system_score_gemma":0.0007885589,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001325048,"about_ca_topic_score_gemma":0.0007959279,"domain_scores_codex":[0.9994118,0.0001777103,0.00002218077,0.00009127097,0.0001751974,0.0001217949],"domain_scores_gemma":[0.9990999,0.0003025563,0.0001214967,0.000105654,0.0001182105,0.000252213],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.000007980384,0.000005331369,0.00004236057,0.000006237961,0.000001890146,0.00001608367,0.00005822801,0.0001191473,0.00008496878,0.9985386,0.000678418,0.0004407252],"study_design_scores_gemma":[0.00001066441,0.00000634589,0.0001309707,0.000002837349,0.000002812998,0.00003101277,0.00003570147,0.0005131923,0.00004392776,0.9971124,0.002106134,0.00000403001],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.5011712,0.003724246,0.04898325,0.01545843,0.001878421,0.00007713409,0.0004143702,0.0004809163,0.427812],"genre_scores_gemma":[0.9590791,0.0008832387,0.003434903,0.0009078347,0.001466171,0.00004616674,0.0002086531,0.00008227788,0.03389163],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.007849934,"threshold_uncertainty_score":0.02626061,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0207618046040734,"score_gpt":0.2643151972062449,"score_spread":0.2435533926021715,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}