{"work":{"id":"a0dfc292-30d5-4cd8-a3fb-33f689ee2365","openalex_id":null,"doi":null,"arxiv_id":"hep-th/9812127","raw_key":null,"title":"M-Theory and Topological Strings--II","authors":null,"authors_text":"R","year":1998,"venue":"hep-th","abstract":"It is shown how the topological string amplitudes encode the BPS structure of wrapped M2 branes in M-theory compactification on Calabi-Yau threefolds. This in turn is related to a twisted supersymmetric index in 5 dimensions which receives contribution only from BPS states. The spin dependence of BPS states in 5 dimensions is captured by the string coupling constant dependence of topological string amplitudes.","external_url":"https://arxiv.org/abs/hep-th/9812127","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-05-24T06:24:00.271075+00:00","pith_arxiv_id":"hep-th/9812127","created_at":"2026-05-09T06:20:40.512550+00:00","updated_at":"2026-05-24T06:24:00.271075+00:00","title_quality_ok":false,"display_title":"M theory and topological strings. 2","render_title":"M theory and topological strings. 2"},"hub":{"state":{"work_id":"a0dfc292-30d5-4cd8-a3fb-33f689ee2365","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":10,"external_cited_by_count":null,"distinct_field_count":2,"first_pith_cited_at":"2023-09-21T13:15:52+00:00","last_pith_cited_at":"2026-05-19T08:51:45+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-06-03T08:15:57.322156+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":2},{"context_role":"method","n":1}],"polarity_counts":[{"context_polarity":"background","n":2},{"context_polarity":"use_method","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}