WARPED PRODUCT METRICS WITH RANK-1 RICCI TENSOR

Bilge A. H., Daghan D.

30th Spanish Relativity Conference, Tenerife, İspanya, 10 - 14 Eylül 2007, cilt.30, ss.329-332 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 30
  • Doi Numarası: 10.1051/eas:0830055
  • Basıldığı Şehir: Tenerife
  • Basıldığı Ülke: İspanya
  • Sayfa Sayıları: ss.329-332
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Locally 2+2 warped product metrics with a Lorentzian base and Riemannian fiber are described in Newman-Penrose formalism. It is shown that solutions with rank-1 Ricci tensor are characterized by Phi(11) + 3 Lambda = 0 and Phi(00)Phi(22) = (Phi(11) - 3 Lambda)(2). Integrability conditions for the Bianchi identities are studied and it is proved that the Sources are null Einstein-Maxwell fields, massless scalar fields or stiff matter fields corresponding respectively to Lambda = 0, Lambda > 0 or Lambda < 0.