Cawley's counterexample to Dirac's conjecture as a curved spacetime

M. Carmeli

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Cawley's counterexample Lagrangian to Dirac's conjecture on dynamical systems is modified to a line element in curved spacetime, and the energy-momentum tensor corresponding to such a spacetime is found. The spacetime obtained satisfies the Einstein field equations and describes a three-dimensional matterfilled universe. It is further shown that such a universe cannot be filled up with other sources, such as a perfect fluid, a scalar field, or an electromagnetic field, without violating the Einstein field equations.

Original languageEnglish
Pages (from-to)83-89
Number of pages7
JournalInternational Journal of Theoretical Physics
Issue number1
StatePublished - 1 Jan 1987
Externally publishedYes

ASJC Scopus subject areas

  • General Mathematics
  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Cawley's counterexample to Dirac's conjecture as a curved spacetime'. Together they form a unique fingerprint.

Cite this