- #1

- 7

- 0

If you have an action for two independent scalar fields, say A and B (arbitrary functions of (x_mu), both without any zeros), then can I redefine the action in terms of two new scalar fields A and C=AB? Are these two independent variables? I hope they are, but suspect they aren't. Sorry if its a stupid question, I dont know the criteria for two fields to be independent. Any help would be great.

Thank you,

Ste