John R. Ray, Larry L. Smalley
Abstract
We extend the fundamental variational principle for a perfect fluid in general relativity so that it applies to the metric-torsion Einstein-Cartan theory. We thereby deduce field equations for a perfect fluid in the Einstein-Cartan theory.
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We extend the fundamental variational principle for a perfect fluid in general relativity so that it applies to the metric-torsion Einstein-Cartan theory. We thereby deduce field equations for a perfect fluid in the Einstein-Cartan theory.
Key concepts: Perfect fluid, Einstein, General relativity, Physics, Torsion (gastropod), Classical mechanics, Theory of relativity, Unified field theory