1996/09/30 by Arshad Momen
Mathematics · Physics and Astronomy · #Action (physics) #Artificial intelligence #Black Holes and Theoretical Physics #Boundary (topology) #Classical mechanics #Computer science #Connection (principal bundle) #Dynamics (music) #Enhanced Data Rates for GSM Evolution #Geometry #Gravitation #Mathematical analysis #Mathematics #Noncommutative and Quantum Gravity Theories #Order (exchange) #Physics #Quantum Electrodynamics and Casimir Effect #Term (time) #Theoretical physics #gr-qc #hep-th
paper · pdf · doi:10.1016/s0370-2693(97)00010-5
published as Phys.Lett. B394 (1997) 269-274 · Revised version, 16 pages, eqs. corrected and refs. added
arxiv created 1996/11/03 · openalex publication_date 1997/02/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We discuss BF theories defined on manifolds with spatial boundaries. Variational arguments show that one needs to augment the usual action with a boundary term for specific types of boundary conditions. We also show how to use this procedure to find the boundary actions for theories of gravity with first order formulations. Possible connection with the membrane approach is also pointed out.