{"paper":{"title":"Geometry of Black Holes and Multi-Black-Holes in 2+1 dimensions","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Dieter Brill","submitted_at":"1996-07-11T23:10:54Z","abstract_excerpt":"Lecture given at ``Raychaudhuri session,\" ICGC-95 conference, Pune (India), December 1995.\n Contents:\n I. Introduction\n II. (2+1)-Dimensional Initial Values in Stereographic Projection\n A. The single, non-rotating black hole\n B. Non-rotating multi-black-holes\n C. ``Black Hole\" Universe Initial Values\n III. Time Development: Enter the Raychaudhuri Equation\n IV. Time Development in Stereographic Projection\n A. The BTZ black hole spacetime\n B. Multi-Black-Hole Spacetimes\n V. Black Holes with Angular Momentum\n VI. Analogous 3+1-Dimensional Black Holes\n VII. Conclusions"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9607026","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}