{"paper":{"title":"Geodesic stability and Quasi normal modes via Lyapunov exponent for Hayward Black Hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Farook Rahaman, Indrani Karar, Monimala Mondal, Parthapratim Pradhan","submitted_at":"2020-08-23T14:44:23Z","abstract_excerpt":"We derive proper-time Lyapunov exponent $(\\lambda_{p})$ and coordinate-time Lyapunov exponent $(\\lambda_{c})$ for a regular Hayward class of black hole. The proper-time corresponds to $\\tau$ and the coordinate time corresponds to $t$. Where $t$ is measured by the asymptotic observers both for for Hayward black hole and for special case of Schwarzschild black hole.\n  We compute their ratio as $\\frac{\\lambda_{p}}{\\lambda_{c}} = \\frac{(r_{\\sigma}^{3} + 2 l^{2} m )}{\\sqrt{(r_{\\sigma}^{2} + 2 l^{2} m )^{3}- 3 m r_{\\sigma}^{5}}}$ for time-like geodesics. In the limit of $l=0$ that means for Schwarzs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.11022","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2008.11022/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}