Bel-Robinson tensor and dominant energy property in the Bianchi type I   Universe
  Within the framework of Bianchi type-I space-time we study the Bel-Robinson tensor and its impact on the evolution of the Universe. We use different definitions of the Bel-Robinson tensor existing in the literature and compare the results. Finally we investigate the so called "dominant super-energy property" for the Bel-Robinson tensor as a generalization of the usual dominant energy condition for energy momentum tensors.   Keywords: Bianchi type I model, super-energy tensors   Pacs: 03.65.Pm and 04.20.Ha 
Bijan Saha, Victor Rikhvitsky and Mihai Visinescu