ExpandProductMetric

• ExpandProductMetric[expr, metric] expands expr decomposing all instances of the product-metric and its derived curvature tensors in terms of the objects of the subvbundles that form the vbundle of metric. The second argument is listable.
• ExpandProductMetric[expr] is converted into ExpandProductMetric[expr, $ProductMetrics]

• Internally this function works using a third argument which specifies the object being expanded: delta, Metric, Christoffel, CovD, Riemann. This is handled using the private function ProductMetricRules.
• See: Section 4.6.
• See also: $ProductMetrics.
• New in version 0.
• Last update: 25-X-2007 for version 0.9.3 of xTensor`.

Created by Mathematica  (May 16, 2008)