{"work":{"id":"ee9030d7-735c-43ee-8879-a1538dcdc4a6","openalex_id":null,"doi":null,"arxiv_id":"1506.02210","raw_key":null,"title":"The Theorem of Ostrogradsky","authors":null,"authors_text":"R","year":2015,"venue":"hep-th","abstract":"Ostrogradsky's construction of a Hamiltonian formalism for nondegenerate higher derivative Lagrangians is reviewed. The resulting instability imposes by far the most powerful restriction on fundamental, interacting, continuum Lagrangian field theories. A discussion is given of the problems raised by attempts to evade this restriction.","external_url":"https://arxiv.org/abs/1506.02210","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-05-24T20:59:54.674754+00:00","pith_arxiv_id":"1506.02210","created_at":"2026-05-10T09:38:41.994013+00:00","updated_at":"2026-06-05T21:23:00.469572+00:00","title_quality_ok":false,"display_title":"The Theorem of Ostrogradsky","render_title":"The Theorem of Ostrogradsky"},"hub":{"state":{"work_id":"ee9030d7-735c-43ee-8879-a1538dcdc4a6","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":20,"external_cited_by_count":null,"distinct_field_count":6,"first_pith_cited_at":"2019-07-15T21:46:29+00:00","last_pith_cited_at":"2026-05-19T16:48:23+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":"2026-06-11T16:58:42.313521+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":9}],"polarity_counts":[{"context_polarity":"background","n":9}],"runs":{},"summary":{},"graph":{},"authors":[]}}