Sökning: "Bel tensor"

Hittade 2 avhandlingar innehållade orden Bel tensor.

  1. 1. The Chevreton Superenergy Tensor in Einstein-Maxwell Spacetimes

    Författare :Ingemar Eriksson; Göran Bergqvist; Paul Todd; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Einstein-Maxwell; graviational energy; superenergy; Bel tensor; Chevreton tensor; conservation laws; Conformal Einstein space; Theory of relativity; gravitation; Relativitetsteori; gravitation;

    Sammanfattning : In this thesis we investigate the superenergy tensor that was introduced by Chevreton in 1964 as an electromagnetic counterpart to the Bel-Robinson tensor for the gravitational feld.We show that in Einstein-Maxwell spacetimes with a source-free electromagnetic feld, the Chevreton superenergy tensor has many interesting properties. LÄS MER

  3. 2. The Chevreton tensor and its trace

    Författare :Ingemar Eriksson; Marc Mars; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

    Sammanfattning : In this thesis we investigate the Chevreton tensor in Einstein-Maxwell theory. It was introduced in 1964 as the counterpart, for electromagnetic fields, of the well-known Bel-Robinson tensor of the gravitational field. We prove that, in the absence of electromagnetic sources, this tensor is completely symmetric. LÄS MER