23 citations · 30 across the 2 of their papers we have counts for
2 papers
gr-qc2004★ 7 cited
Algebraic and differential Rainich conditions for symmetric trace-free tensors of higher rank
G. Bergqvist, P. Lankinen
We study Rainich-like conditions for symmetric and trace-free tensors T. For arbitrary even rank we find a necessary and sufficient differential condition for a tensor to satisfy t…
gr-qc2004★ 23 cited
Unique characterization of the Bel-Robinson tensor
G. Bergqvist, P. Lankinen
We prove that a completely symmetric and trace-free rank-4 tensor is, up to sign, a Bel-Robinson type tensor, i.e., the superenergy tensor of a tensor with the same algebraic symme…