Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: PmbPhy on 18/06/2018 17:12:34

Title: I need help underestanding derivation in differential geometry for GR
Post by: PmbPhy on 18/06/2018 17:12:34
The pages to the book are here

http://www.newenglandphysics.org/other/McMahon.pdf

He does something fishy starting at the bottom of page 65. Do you see it too?
Title: Re: I need help underestanding derivation in differential geometry for GR
Post by: jeffreyH on 18/06/2018 19:31:10
The pages to the book are here

http://www.newenglandphysics.org/other/McMahon.pdf

He does something fishy starting at the bottom of page 65. Do you see it too?


I'm not sure why the extra terms are introduced. Is it with reference to earlier steps? It does reference an earlier equation number.