International Journal of Theoretical Physics

, Volume 10, Issue 6, pp 363–384 | Cite as

Second-order scalar-tensor field equations in a four-dimensional space

  • Gregory Walter Horndeski


Lagrange scalar densities which are concomitants of a pseudo-Riemannian metric-tensor, a scalar field and their derivatives of arbitrary order are considered. The most general second-order Euler-Lagrange tensors derivable from such a Lagrangian in a four-dimensional space are constructed, and it is shown that these Euler-Lagrange tensors may be obtained from a Lagrangian which is at most of second order in the derivatives of the field functions.


Field Theory Elementary Particle Quantum Field Theory Scalar Field Field Equation 
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Copyright information

© Plenum Publishing Company Limited 1974

Authors and Affiliations

  • Gregory Walter Horndeski
    • 1
  1. 1.Department of Applied MathematicsUniversity of WaterlooWaterlooCanada

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