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S Jun 6, 2023 at 5:05 history bounty ended CommunityBot
S Jun 6, 2023 at 5:05 history notice removed CommunityBot
May 31, 2023 at 21:05 comment added Norbert Schuch By the way, I don't think that "reduced basis transformation" is standard terminology in linear algebra -- at least, I do not know what precisely is meant by that (but I get the general idea of what it is supposed to mean in the given context), and a quick search seems to suggest that for the very best, it is terminology used only/primarily in the context of DMRG (and possibly some other computational methods; it might well be that it stems from the historical origins of DMRG in real-space renormalization group methods).
May 31, 2023 at 21:02 comment added Norbert Schuch DMRG (and other computational methods based on tensor networks) are precisely the intersection of "computational-physics" (or "numerical-method", but that's a synonym) and "tensor-network", so I think this way of tagging makes much more sense than creating a new tag for precisely that intersection of two existing tags. (Creating such a new tag can make sense, but only if the intersection is big enough.)
May 31, 2023 at 20:36 comment added Kyle Kanos You also have enough rep to create a tag, it might be more beneficial to create a dmrg tag and allow users to filter over that, if that is your concern.
May 31, 2023 at 20:33 comment added Kyle Kanos @Norbert It's asking about specific terms found in a paper (what is "reduced basis transformation" and "how is it (reduced basis transform) related to SVD"). There's nothing "computational" about definitions. I would expect users to be searching for renormalization, tensor-network, linear-algebra, quantum-information, spin-models, etc over comp-phys.
May 31, 2023 at 19:48 history rollback Norbert Schuch
Rollback to Revision 4
May 31, 2023 at 19:48 comment added Norbert Schuch @KyleKanos Otherwise, you might as well argue that a question asking why Metropolis updates preserve detailed balance is not about Monte Carlo methods, but about some arithmetics. -- Similarly, if you think it is about linear algebra and nothing else, the tags "spin-chains" and "tensor-network" ought to be removed as well, and it should be migrated to math.
May 31, 2023 at 19:47 comment added Norbert Schuch @KyleKanos The way I read the question it is about understanding one step in the explanation of the DMRG algorithm in a review paper about the DMRG algorithm. People searching for answers on the DMRG algorithm might be searching for this, so tagging it accordingly will help them find it. (One might read it as a question about linear algebra definitions, but then my answer is completely off -- I think what the OP wants to know is why the claim made in the review is correct, and this type of relation shows up very specifically in this context.)
May 31, 2023 at 19:28 history edited Kyle Kanos
edited tags
May 31, 2023 at 19:28 comment added Kyle Kanos @Norbert This question is about linear algebra definitions, not computational physics.
May 31, 2023 at 18:13 history edited Norbert Schuch
The question is about a specific aspect of the DMRG algorithm, which is a method in computational physics.
May 30, 2023 at 17:07 history edited Kyle Kanos
this isn't actually about comp-phys
May 29, 2023 at 22:06 history edited Norbert Schuch CC BY-SA 4.0
added 217 characters in body
May 29, 2023 at 22:03 answer added Norbert Schuch timeline score: 1
S May 29, 2023 at 3:21 history bounty started CrisPhy
S May 29, 2023 at 3:21 history notice added CrisPhy Authoritative reference needed
May 26, 2023 at 13:37 history asked CrisPhy CC BY-SA 4.0