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Communications in Mathematical Physics

, Volume 35, Issue 4, pp 321–346 | Cite as

Higher order perturbation theory of exponential Lagrangians: Fourth order

  • K. Pohlmeyer
Article

Abstract

We define the vacuum expectation value of the time-ordered product of four exponentials of free massless scalar fields as a continuous linear functional over a suitable test function space using minimal singularity as a criterion.

Keywords

Neural Network Perturbation Theory Scalar Field Function Space Fourth Order 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1974

Authors and Affiliations

  • K. Pohlmeyer
    • 1
    • 2
  1. 1.Instituto de FisicaUniversidade Federal do Rio Grande do SulPôrto Alegre RSBrazil
  2. 2.II. Institut für Theoretische Physik der Universität HamburgFederal Republic of Germany

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