User talk:Dmr2

Welcome

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Image Tagging Image:Ben Green, Mathematician.jpg

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Riemann curvature tensor

Hi, Dmr2, did you write this?: "For a two-dimensional surface, there is (up to symmetries) only one non-zero component of the Riemann tensor, $R_{1212}$ , which is equal to the determinant of the metric tensor $g_{ij}$ ." I take it that last bit was a brain blip :-/ ---CH 13:58, 19 June 2006 (UTC)[reply]

Hi, no I didn't write it. I just corrected the English without thinking about whether it made sense! I have tried to amend it so that now it does make sense. --Dmr2 10:24, 20 June 2006 (UTC)[reply]

Hi

I noticed that you correct my deficient english and I thank you. But I also want to ask (respectfully) about the meaning of the sentence above:

I take it that last bit was a brain blip.

Further, what about the components ${R^{i}}_{jkl}$ for 3-manifolds? Do you know of something basic about them, worth for the Riemann curvature tensor article?

Thanks again!--Juan Marquez 02:12, 20 June 2006 (UTC)[reply]

Hi Juan. In think "brain blip" is referring to forgetting the Ricci scalar. For surfaces,

R_{1212}

should be Rg/2, not g.

I'm not sure what we could write about the Riemann tensor for 3-manifolds other than that there are 6 independent components, which can be thought of as the components of the Ricci tensor,

R_{ab}

. --Dmr2 10:33, 20 June 2006 (UTC)[reply]

could you please tell us how are organized these $R_{ijkl}$ for a generic 3-manifold and any other meaning about these functions?

--kiddo 05:58, 22 June 2006 (UTC)[reply]

Request for edit summary

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trouble with Dead-End Pages?

you made one edit [1] that seemed to restore a lot of stuff recently deleted. Finger trouble?

I restored it, anyway - but if there was one you wanted to delete, better check again. --Alvestrand 18:02, 8 August 2006 (UTC)[reply]

Thanks, I think I must have edited a previous version! --Dmr2 10:30, 9 August 2006 (UTC)[reply]

beta-functions

Dear dmr2, I have recently started editing wikipedia articles, focussing particularly on theoretical physics. I thought you might like to look over my recent contributions on beta-functions, and also the Landau pole and asymptotic freedom in Coupling constant. --Jpod2 12:20, 9 August 2006 (UTC)[reply]

Hi Jpod2. Welcome to Wikipedia. You seem to have got the hang of things ;) --Dmr2 13:47, 9 August 2006 (UTC)[reply]

Re: Dilaton->Dilation

Hi, your bot incorrectly changed dilaton to dilation in Chiara Nappi. Dmr2 11:02, 13 September 2006 (UTC)[reply]

My apologies. I thought I knew a bit of physics, but I'd never heard of dilatons. Ah, the wacky world of string theory; although I guess I've learned something new for today! :) Thanks for catching that. Cheers, CmdrObot 20:45, 13 September 2006 (UTC)[reply]

Oops

My note about the "Ave verum corpus" came from notes from a music history class I took, but based on a quick internet check I no longer believe it is correct. Thanks for pointing that out. Geriguiaguiatugo 14:04, 22 September 2006 (UTC)[reply]

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Motto of the day

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Image licensing

Hey there...

I am trying to clean up some of the images with minor licensing issues and I came across Image:Stu1.png which is only used on your userpage. If you are going to use the image, could you go and fix the licensing on the image page and be clear about releasing the image under a GFDL license (or another free license). Thanks. If you have any questions, please drop me a note on my talk page. --Jordan 1972 (talk) 14:58, 11 October 2008 (UTC)[reply]

All files in category Unclassified Chemical Structures listed for deletion

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Delivered by MessageDeliveryBot on behalf of MGA73 (talk) at 17:50, 28 November 2011 (UTC).[reply]

File:Stu1.png needs authorship information

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The media file you uploaded as File:Stu1.png appears to be missing information as to its authorship (and or source), or if you did provide such information, it is confusing for others trying to make use of the image.

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Speedy deletion nomination of Johannes Spech

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A tag has been placed on Johannes Spech requesting that it be speedily deleted from Wikipedia. This has been done under section A7 of the criteria for speedy deletion, because the article appears to be about a person, organization (band, club, company, etc.) or web content, but it does not indicate how or why the subject is important or significant: that is, why an article about that subject should be included in an encyclopedia. Under the criteria for speedy deletion, such articles may be deleted at any time. Please see the guidelines for what is generally accepted as notable.

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Johannes Spech

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Help Request

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Motto of the Day Help Request April 2014

Today's motto...

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Ways to improve Felipe Rodríguez (composer)

Hi, I'm Boleyn. Dmr2, thanks for creating Felipe Rodríguez (composer)!

I've just tagged the page, using our page curation tools, as having some issues to fix. This has been tagged for 3 issues.

The tags can be removed by you or another editor once the issues they mention are addressed. If you have questions, you can leave a comment on my talk page. Or, for more editing help, talk to the volunteers at the Teahouse.

Boleyn (talk) 20:21, 27 October 2017 (UTC)[reply]

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