EinsteinTensor¶

Einstein tensor.

class gravica.einstein.EinsteinTensor(ricci)¶

Bases: object

Einstein tensor \(G_{ab} = R_{ab} - \tfrac{1}{2}\,g_{ab}\,R\).

classmethod from_metric(metric)¶

Build from a MetricTensor.

Return type:: EinsteinTensor

property scalar: Expression¶

property components: list[list[Expression]]¶: \(G_{ab}\) indexed as [a][b].