How Do I Delete a Thread on a Website or Forum?

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Homework Help Overview

The discussion revolves around the process of deleting a thread on a website or forum, with participants sharing their experiences and insights related to this issue.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Some participants express confusion about the deletion process, indicating that they have received help but still do not understand how to delete their threads. Others reference concepts from differential geometry, such as covariant derivatives, in an unrelated context, which may suggest a misunderstanding of the original topic.

Discussion Status

The discussion appears to be ongoing, with participants sharing their thoughts and experiences. There is a lack of consensus on the deletion process, and some guidance has been offered regarding not deleting posts after receiving help.

Contextual Notes

Participants seem to be navigating the rules of forum etiquette regarding post deletion, and there may be assumptions about the platform's functionality that are being questioned.

latentcorpse
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Edit: Solved
Don't know how to delete thread though!
 
Last edited:
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A covariant derivative is an example of a derivation, that is a differential operator that satisfies the Leibnitz (product rule):

[tex]D ( v \otimes w ) = (Dv)\otimes w + v \otimes (Dw).[/tex]

Therefore the part that you proved above follows. Now, since [tex]l^2[/tex] is a scalar, it's covariant derivative reduces to the ordinary derivative. You can see this by explicit computation, since the signs in front of the Christoffel symbols are opposite when acting on covariant and contravariant vectors.
 
Judging from a textbook's perspective, your problem is ill-posed, because the [itex]l^2[/itex] for l a 4-vector is a genuine scalar, and the way the covariant derivative acts on the scalars is used as an axiom in deriving how the covariant derivative acts on covectors, knowing how it acts on scalars and 4-vectors.
 
latentcorpse said:
Edit: Solved
Don't know how to delete thread though!

You don't delete your post after you receive help here. Check your PMs.
 

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