Is there a simplifcation of ##g^{\alpha \delta}g_{\beta \gamma} ## or what is equal to ?
Mar 30, 2021 #1 Arman777 Insights Author Gold Member 2,170 189 Is there a simplifcation of ##g^{\alpha \delta}g_{\beta \gamma} ## or what is equal to ?
Mar 30, 2021 #2 it's just a coordinate dependent number no? assuming your indices are not abstract or anything
Mar 30, 2021 #4 PeterDonis Mentor Insights Author 41,298 18,936 Arman777 said: Is there a simplifcation of ##g^{\alpha \delta}g_{\beta \gamma} ## or what is equal to ? Not if all the indexes are different. Also, what does this have to do with a tensor density?
Arman777 said: Is there a simplifcation of ##g^{\alpha \delta}g_{\beta \gamma} ## or what is equal to ? Not if all the indexes are different. Also, what does this have to do with a tensor density?