Hello everyone. I was hoping that someone could possibly help me with a problem I've got.(adsbygoogle = window.adsbygoogle || []).push({});

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

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# Redefinition of a scalar field

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