Algebraic Structure of Classical Field Theory I: Kinematics and Linearized Dynamics for Real Scalar Fields

Sep, 2012
66 pages
Published in:
  • Commun.Math.Phys. 368 (2019) 2, 519-584
  • Published: May 4, 2019
e-Print:
DOI:

Citations per year

2012201520182021202402468
Abstract: (arXiv)
We describe the elements of a novel structural approach to classical field theory, inspired by recent developments in perturbative algebraic quantum field theory. This approach is local and focuses mainly on the observables over field configurations, given by certain spaces of functionals which are studied here in depth. The analysis of such functionals is characterized by a combination of geometric, analytic and algebraic elements which (1) make our approach closer to quantum field theory, (2) allow for a rigorous analytic refinement of many computational formulae from the functional formulation of classical field theory and (3) provide a new pathway towards understanding dynamics. Particular attention will be paid to aspects related to nonlinear hyperbolic partial differential equations and their linearizations.
Note:
  • 68 pages, no figures. Version 7: very minor corrections, DOI added. Version published (Online First) in Communications in Mathematical Physics, journal reference will be added when available
  • relativistic classical field theory
  • algebraic approach
  • observables
  • hyperbolic Euler-Lagrange equations
  • Nash-Moser-Hoermander theorem
  • field theory: classical
  • field theory: algebra
  • field theory: scalar
  • differential equations
  • kinematics