Issue - Running SeparateMetric using a frozen metric, gives a different result than using the active (first) metric |
BillN |
11:54 AM |

Issue - xAct confusion between partial derivatives and curvatureless/torsionless covariant derivatives |
BillN |
11:51 AM |

Replicating ToCanonical see-saw spinors for SU(4) |
IN |
8:50 AM |

Choice of indices for MakeRule |
Sergio González |
8:41 AM |

How to fix errors like (ParallelCombine::nopar&General::stop) |
Ali rezaie |
8:11 AM |

Enforce contraction on a particular tensor while UseMetricOnVBundle -> None ? |
BN |
7:22 AM |

Strange simplification with partial derivatives of Christoffels |
AH |
2/18/18 |

Parenthesis in expressions do not go away after Expand |
BN |
2/17/18 |

No symbols in output |
Adrià delhom i latorre |
2/16/18 |

a problem with CTensor |
Mohammad Hassan Vahidinia |
2/9/18 |

RE: [xAct: 2118] Is ExpressionManipulation still used? Does it work with several other packages loaded? |
Jose |
2/6/18 |

Can I rewrite the 4-D covariant derivative using the induced 3-D covariant ? |
adsense yanyue |
1/30/18 |

xCoba does not calculate tensors with MetricCompute |
Albin Nilsson |
1/26/18 |

xTras link not working (on xAct Home page) |
BillN |
1/12/18 |

Mathematica 11.1 |
Norbert Van den Bergh |
1/12/18 |

Variation with respect to tetrad |
Amir Hadi Ziaie |
12/21/17 |

Problem calculating quadratic action around Minkowski |
Andrew Coates |
12/14/17 |

What is needed to get xAct to see the Invar database |
Daniel Mahler |
12/12/17 |

Splitting Perturbation from a Lagrangian |
charles mazuet |
12/11/17 |

Reparametrization and Weyl invariance of Conformal Gravity at cubic order |
SN |
12/6/17 |