On 9/2/2024 9:06 PM, Alan Grayson wrote:
On Monday, September 2, 2024 at 7:58:04 PM UTC-6 Brent Meeker wrote:
I should think it was obvious that the metric tensor, M, at a
point g*Mg gives the length of g.
It's not obvious and I don't see how it's relevant. At each point the
metric tensor can be evaluated on an uncountable set of pairs of
vectors. So which pair does one choose? AG
Don't pick a pair. Pick one and it's conjugate.
Brent
I generally ignore these questions because you're asking questions
that take some exposition which is found in any text book and many
online sites. I also recommend "Relativity Demystified" by David
McMahon.
TY for the reference. I'll check if it has the issue I need
addressing. It's not on any of the sites I checked, so far. AG
Bretn
On 9/2/2024 5:25 PM, Alan Grayson wrote:
Brent; do me a small favor. If you are unable to answer my
question, just say so. OK? AG
On Saturday, August 31, 2024 at 8:48:13 PM UTC-6 Alan Grayson wrote:
You seem to know a lot about relativity, so please explain
how the metric tensor can be defined unambiguously at some
point P on the underlying manifold, spacetime, if there is an
uncountable set of pairs on a vector space on the tangent
space at some point P on which the metric tensor is defined
(as a bilinear function which maps to the real numbers.) TY, AG
--
You received this message because you are subscribed to the
Google Groups "Everything List" group.
To unsubscribe from this group and stop receiving emails from it,
send an email to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/everything-list/b088ec45-3862-4dad-bff6-2d97b6b4bb55n%40googlegroups.com
<https://groups.google.com/d/msgid/everything-list/b088ec45-3862-4dad-bff6-2d97b6b4bb55n%40googlegroups.com?utm_medium=email&utm_source=footer>.
--
You received this message because you are subscribed to the Google
Groups "Everything List" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/everything-list/fe23c33c-d79e-4516-aa98-e6eec954fa19n%40googlegroups.com
<https://groups.google.com/d/msgid/everything-list/fe23c33c-d79e-4516-aa98-e6eec954fa19n%40googlegroups.com?utm_medium=email&utm_source=footer>.
--
You received this message because you are subscribed to the Google Groups
"Everything List" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/everything-list/1d4d4ae9-a08a-4302-b9ed-f0e15db89768%40gmail.com.
