1978/02/01 by I. M. Singer · 1 voice · 14 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Homotopy and Cohomology in Algebraic Topology
paper · doi:10.1007/bf01609471
openalex publication_date 1978/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/26