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Topic: What is a vector field?
Replies: 4   Last Post: Apr 25, 2013 11:02 AM

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Tom Roberts

Posts: 333
Registered: 5/8/06
Re: What is a vector field?
Posted: Apr 25, 2013 11:02 AM
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On 4/24/13 4/24/13 10:33 AM, Wade Jenkins wrote:
> Tom Roberts wrote:
>>>> Hmmmm. In physics, where we always have an ORIENTABLE manifold WITH
>>>> METRIC,

>>> Certainly at an undergraduate level, but once you get into things like
>>> gauge theories you need manifolds without a metric.

>> Yes. I meant spacetime manifold.

> Finally you admit, relativity is an undergraduate level!

SR, certainly.

But GR and gauge theories not, and the issues discussed here are not (except
possibly for a very advanced undergraduate).

Tom Roberts

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