User talk:Maschen

Hi!

Hi: my watchlist indicated to me you were getting messages of support while dealing with a difficult editor. At times like these, it's nice to hear from old friendly editors. How have you been? I've been trundling along in my studies, having a lot of interesting conversations with Quondum... Rschwieb (talk) 13:35, 15 October 2013 (UTC)

Thanks for the post, it is nice to read from you Rschwieb. I wish I had more time to talk with yourself and Quondum. Currently trundling in life too, final year at uni. I'll keep a look out for the GA, matrix, and possibly quaternion articles - topics yourself, Quondum, and me all seem to share common interest.

One of millions of spare-time hobbies is to keep reading and researching in geometric algebra and calculus, especially on fractals in GA (since complex numbers and quaternions can be used for generating fractals, so should multivectors), the nature of relativistic wave equations, and fractional derivatives/integrals in geometric calculus. Best wishes! M∧Ŝc²ħεИ_τlk 18:27, 16 October 2013 (UTC)

Tung-Mow Yan

This is of course totally the wrong place for this message, but I had no good clue of where else to stick it, short of opening another subject! After a good move on Lubanski, if you were ready to restore another notable to his proper stature, I noticed with disbelief that Tung-Mow Yan, the father of the celebrated Drell–Yan process is still missing from WP, even as a stub. There is lots of open info on him around, though. But please don't take this as an assignment from a lazy taskmaster from hell!! best, Cuzkatzimhut (talk) 20:09, 18 October 2013 (UTC)

You could of just clicked "new section" and filled the title and textspace in!? No worries, I did so.

Thanks for pointing this out: I'll have a look around and cobble together something. Best, M∧Ŝc²ħεИ_τlk 22:01, 18 October 2013 (UTC)

OK, here is a draft: User:Maschen/Tung-Mow Yan. It's not ready for mainspace as I have only found a couple of links, we need more reliable sources. Feel free to edit. M∧Ŝc²ħεИ_τlk 05:45, 19 October 2013 (UTC)

I just checked the Chinese and Japanese Wikipedias. No biogs there. Strange.P0M (talk) 18:18, 27 October 2013 (UTC)

Indeed... Seems like no-one was inclined to write about him, except for Cuzkatzimhut recently. Thanks for posting here P0M. M∧Ŝc²ħεИ_τlk 20:24, 27 October 2013 (UTC)

I have found a few things in Chinese, e.g., something from the physics department at National Taiwan University. I'll try to find time to read them. P0M (talk) 00:23, 28 October 2013 (UTC)

If you can then great, thanks for taking the time and interest! Don't make it an obligation though. Best, M∧Ŝc²ħεИ_τlk 05:47, 28 October 2013 (UTC)

Kodi Husimi, Lev Pitaevskii

If there were Japanese expertise and gumption for this sort of thing, Kodi Husimi, father of the Husimi Q representation , might well be notable.... ja; ref Cuzkatzimhut (talk) 11:54, 7 November 2013 (UTC)

OK, I'll have a look and see.

Yet another notably missing person is Lev Pitaevskii, for which I made a (yet another) crude start. M∧Ŝc²ħεИ_τlk 06:59, 8 November 2013 (UTC)

I don't know much about him, but he (Pitaevski) did not quite get the 2001 Nobel prize snuck in there, right????

Re: Husimi, he is also known for Husimi trees, cf Cactus graph. But computer translations of his japanese wikipedia bio are hard going.... (note they render him as Fusimi) and i will be overseas for a week.... Cuzkatzimhut (talk) 16:07, 8 November 2013 (UTC)

About Pitaevski: It was not "snuck" in there. I may have misread from somewhere. M∧Ŝc²ħεИ_τlk 16:43, 8 November 2013 (UTC)

Apologies, just a joke! The NP sneaking itself in the middle of the night was irresistible.... I also stumbled on an important Hungarian cosmic ray pioneer, L Janossy, hu:wp, but he might be a very rainy day project... Best, Cuzkatzimhut (talk) 16:59, 8 November 2013 (UTC)

No need to apologize!

About Lajos Janossy: we'll get to him soon also. (It generally takes about a week to compile information offline before uploading). M∧Ŝc²ħεИ_τlk 17:07, 8 November 2013 (UTC)

Lajos Jánossy

About Janossy, a Hungarian friend steered me to this site. Cuzkatzimhut (talk) 23:57, 8 November 2013 (UTC)

Thanks for the link. I've compiled some content for Lajos Jánossy and will insert into mainspace soon userspace for now - User:Maschen/Lajos Jánossy. M∧Ŝc²ħεИ_τlk 08:27, 9 November 2013 (UTC)

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Amend slope svg image with another theta

Hiya! Would you mind amending this image with another "angle theta", that is, duplicating the angle arc plus the letter Θ and placing them where the line crosses the x-axis and then uploading this new version. Sorry, it didn't occur to me when we were creating the image. I probably can now manage the amendment :), but not the upload since you are the original uploader.

Thanks so much, Linda Lfahlberg (talk) 07:29, 3 November 2013 (UTC)

Hi, thanks for your post, it is uploaded to the English Wikimedia commons, by all means use on the Macedonian Wikimedia commons (if that's the correct language?).

Don't worry about asking again or forgetting to mention the angle! Take a look at any of my diagrams and you'll find there are numerous revisions (in some instances my browser is dodgy, otherwise I forgot something or made numerous mistakes and had to go back and correct the picture). If anything this is nothing - I'm probably the #1 editor in re-editing my own diagrams!

Best regards, ^_^ M∧Ŝc²ħεИ_τlk 07:50, 3 November 2013 (UTC)

Note you may have to change the size (just the width is usually enough), to a new size never used before, to make the new picture appear. There is a very annoying bug which occurs when a new picture is uploaded: if you keep leave the width unchanged - the old picture remains. Even a width change by 1px makes makes the new picture appear, with an unnoticeable difference in visible size.

(I think at an increasing rate on modern internet servers this bug is not a problem, but it takes time for the WP/WM file servers to synchronize and update files, so the change temporarily doesn't appear. All this experience is evidenced at talk:Radioactive decay#Diagram Problem and Wikipedia:SVG help#File:Radioactive decay modes.svg earlier this year).

I changed the image here to a width of 250px, feel free to change it to something not used before. M∧Ŝc²ħεИ_τlk 08:05, 3 November 2013 (UTC)

Great! Thanks (and I always learn something new - about Wikimedia commons and why my new versions were not showing up!) Lfahlberg (talk) 08:45, 3 November 2013 (UTC)

Symmetry in quantum mechanics

This article is truly very very good. Would you believe that I have no complaints whatsoever? It can easily develop into an A class article. The approach is just right.

Hats off! YohanN7 (talk) 18:43, 7 November 2013 (UTC)

Thanks, very nice of you to say. It's also very incomplete, maybe it will be A-class when "finished". Best, M∧Ŝc²ħεИ_τlk 05:43, 8 November 2013 (UTC)

Don't finish it too quickly though. You will get speeding tickets. There are a couple on the talk page now.

B t w, why do you precede every equation with a colon? I don't mind, but there is no style-guide in the world allowing this. People will change it, sooner or later. YohanN7 (talk) 03:06, 11 November 2013 (UTC)

I was editing at a normal pace. And it's completely standard and legitimate to use colons before equations to indent them, why people would deindent them is silly but their choice. M∧Ŝc²ħεИ_τlk 09:39, 11 November 2013 (UTC)

Perhaps I mean something else than lighting speed of the typing here. To be precise, there are spots where it is not entirely clear that you have dug into the details of everything. I hope you don't mind me saying this. Since you produce so much it seems impossible that there would be enough time for you to grasp everything. I'll refer back to the real irreducible representations and spin. Here, I recall from some talk page that you wanted to beef out a little instead of perhaps linking or copying or whatever from the Lorentz rep article. The reason being that the L rep article is dense (true) and quite hard (somewhat true). But then finding a purely formal way to express things and skip all the gory conceptual details because you quickly want to arrive at a formula (wherever it comes from) is of no help.

In spots like this, it is much better to do one of the following things:

• Quote the final result and link the relevant article, and leave it at that.
• Beef out completely. Fill in the details that are implicit (or hidden behind blue links) in the main article

Heuristically smashing up a couple of formulas and plausibility arguments brings it down to the level of the undergraduate physics text, that we seem to agree are pretty poor when it comes to group theory. I truly believe (even know) that a large percentage of physics students can't distinguish SO(3) from sl(2;C). [This particular misconception is brought in at the precise moment the ladder operator is introduced.] You are feeding these misconceptions when doing heuristics. YohanN7 (talk) 13:38, 11 November 2013 (UTC)

I've been trying to quote results and link to the articles, and provide some intermediate background where the formulae come from. Cut out what you want, or I'll remove the heuristics eventually. M∧Ŝc²ħεИ_τlk 07:21, 17 November 2013 (UTC)

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Mathematical toolkit for Symmetry in Quantum Mechanics

I have some old stuff that is ready for inclusion in some article. Perhaps it could go into Symmetry in quantum mechanics. The things I'm thinking about are here: User:YohanN7/Representation theory of the Lorentz group#Building representations. Of course, modifications have to be made wherever (and if) it is included.

I'm also thinking about expanding either Lie algebra representation or Representation of a Lie group with the same stuff.

What do you think? YohanN7 (talk) 16:32, 21 November 2013 (UTC)

Nice section, very compact in a list,in particular the 1st, 2nd, 5th points look clear, the 3rd and 4th seem more abstract.

Later I'll upload the Lorentz group diagram as promised, and intend to rewrite the first few sections (particularly on the energy, momentum, angular momentum operators) in a more compressed prose style (as you know these sections involve some Lie group theory so keep that in mind when you insert your content). Thanks, M∧Ŝc²ħεИ_τlk 07:03, 22 November 2013 (UTC)

Legislation A

Good Sir,

you may give england a 1000 years of your labor. i do not care for it. you may have settled down into a very cosy living. i do not care.

i know that cosy living. i've done my babylon reading.

pack your bags. all hindu leave. dont make me do nazi again. you seek the elusive utopia, it does not exist. you are a heathen.

get the fuck out of england, no this is not a extreme right opinion of some angry umelpoyed skinhead.

you hold england like you hold your fucking india.i dont want that.

Amanbir Singh Grewal.