nomadreid's latest activity
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nomadreid replied to the thread Undergrad Erroneously finding discrepancy in transpose rule.Thanks very much, martinbn. As fresh_42 pointed out, I was (erroneously) thinking of the real plane along with extra structure... -
nomadreid reacted to martinbn's post in the thread Undergrad Erroneously finding discrepancy in transpose rule with
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What do you mean by a matrix in the real plane? The real plane is not the set of such matrices. More importantly why do you expect this... -
nomadreid replied to the thread Undergrad Erroneously finding discrepancy in transpose rule.Interesting! Thank you very much, fresh_42. I will look further into that. -
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##\mathbb{C}\not\cong\mathbb{R}^2## The complex numbers are a field; the complex plane is not a field. If you want to identify them... -
nomadreid posted the thread Undergrad Erroneously finding discrepancy in transpose rule in Linear and Abstract Algebra.Obviously, there is something elementary I am missing here. To form the transpose of a matrix, one exchanges rows and columns, so... -
nomadreid replied to the thread Undergrad Elementary question about comparing notations of inner product.Thanks, fresh_42! -
nomadreid reacted to fresh_42's post in the thread Undergrad Elementary question about comparing notations of inner product with
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I don't think that this can be said in such a rigorous way. Yes, physicists use the bra-ket notation, and mathematicians usually use the... -
nomadreid replied to the thread Undergrad Elementary question about comparing notations of inner product.Thanks, fresh_42. I know that it's pure convention, but I am trying to understand the relations between the conventions. What is clear... -
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All expressions are additive in both arguments. Whether you consider the left one or the right one as a covector is a deliberate... -
nomadreid replied to the thread Undergrad Elementary question about comparing notations of inner product.anuttarasammyak, thank you for pointing out that I should have made precise that I was referring to complex vector spaces. I have... -
nomadreid posted the thread Undergrad Elementary question about comparing notations of inner product in Quantum Physics.First, I need to check that I have the 3 notations correct for an inner product in finite vector spaces over a complex field; v*... -
nomadreid reacted to PeterDonis's post in the thread Undergrad Prof Mike Wiest's proposed link between quantum and consciousness with
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We won't know that for sure until we have a confirmed theory of quantum gravity. :wink: -
nomadreid reacted to pines-demon's post in the thread Undergrad Prof Mike Wiest's proposed link between quantum and consciousness with
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Retaking this point. So basically the only idea here is that gravitational-based collapse is maybe not like the quantum mechanics we... -
nomadreid reacted to pines-demon's post in the thread Undergrad Prof Mike Wiest's proposed link between quantum and consciousness with
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Oh right! It was the "quantum gravity" terminology that threw me off. Proving or disproving gravitational-based collapse does not mean... -
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I don't think the research program referred to is to use quantum gravity to explain the brain specifically. I think it is to use quantum...