- #1
binbagsss
- 1,254
- 11
- TL;DR Summary
- 4d notation integration/differentiation
This is probably a stupid question but,
## \frac{d\partial_p}{d\partial_c}=\delta^p_c ##
For the notation of a 4D integral it is ##d^4x=dx^{\nu}##, so if I consider a total derivative:
##\int\limits^{x_f}_{x_i} \partial_{\mu} (\phi) d^4 x = \phi \mid^{x_f}_{x_i} ##
why is there no ##\delta_{\nu}^{\mu}## sort of term required?
## \frac{d\partial_p}{d\partial_c}=\delta^p_c ##
For the notation of a 4D integral it is ##d^4x=dx^{\nu}##, so if I consider a total derivative:
##\int\limits^{x_f}_{x_i} \partial_{\mu} (\phi) d^4 x = \phi \mid^{x_f}_{x_i} ##
why is there no ##\delta_{\nu}^{\mu}## sort of term required?