# Solution-Covariant Derivative of the Ricci Tensor the Hard Way now available online

1. Mar 31, 2012

### nobraner

2. Mar 31, 2012

### Bill_K

Re: Solution-Covariant Derivative of the Ricci Tensor the Hard Way now available onli

nobraner, Your expressions all have two lower μ indices, which is incorrect. Would you like to raise one of them by inserting a gμν?

3. Apr 6, 2012

### nobraner

Re: Solution-Covariant Derivative of the Ricci Tensor the Hard Way now available onli

Bill,

Finally found the time to fix this. One of my biggest weaknesses is ignoring the upper/lower covariant derivative convention. I guess I always think of covariant derivatives as always being covariant.