General Relativity and Gravitation

, Volume 19, Issue 9, pp 917–925 | Cite as

A family of rotating disks as sources of the Kerr metric

  • Victor Hugo Hamity
  • Walter Lamberti
Research Articles


A method of constructing a family of regular rotating disks as sources of the Kerr metric is discussed. The algebraic type of the energy-momentum tensor is analyzed, and it is found that none of the disks satisfies the dominant energy condition and, in some cases, even the weak energy condition is violated. Therefore, if the constructed family includes the totality of sources for the Kerr metric with a disk-like topology, then any physically satisfactory source will not have a disk structure.


Energy Condition Differential Geometry Weak Energy Condition Dominant Energy Condition Disk Structure 
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Copyright information

© Plenum Publishing Corporation 1987

Authors and Affiliations

  • Victor Hugo Hamity
    • 1
    • 2
  • Walter Lamberti
    • 3
    • 4
  1. 1.Researcher of CONICETArgentina
  2. 2.IMAF and Observatorio Astronómico, UNCCórdobaArgentina
  3. 3.Fellowship-holder of CONICETArgentina
  4. 4.IMAF, UNCLaprida 854Argentina

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