User talk:Fropuff

File source problem with File:Coequalizer-01.png

Thank you for uploading File:Coequalizer-01.png. I noticed that the file's description page currently doesn't specify who created the content, so the copyright status is unclear. If you did not create this file yourself, you will need to specify the owner of the copyright. If you obtained it from a website, please add a link to the page from which it was taken, together with a brief restatement of the website's terms of use of its content. If the original copyright holder is a party unaffiliated with the website, that author should also be credited. Please add this information by editing the image description page.

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Klein bottle images.

A parameterization for an embedding of the Klein bottle into R⁴ = C² is given by

$z_{1}=(a+b\cos v)e^{iu}\,$

$z_{2}=(b\sin v)e^{iu/2}\,$

where a > b > 0 are constants and u,v run from 0 to 2π. Obviously I can't draw this one.

Perhaps a projection maybe?

The R⁴ parameterization above is basically just the basic torus parameterization as shown here with z₁ = x + iy, and a real z height replaced by a complex or two dimensional z₂ = z + iw. The minor cross section is a circle of radius b that "flips over" in the z-w space and presents its "backside" as it comes back around and re-connects. In the orthogonal R³ x-y-z projection the torus pinches or flattens to a line/crosscap at u = π. A possible figure could show the flattening torus with periodic circular cross sections that become horizontal at the cross over, and is then upside down after the cross over. In order to portray the "upside downess" perhaps the circle could have different colors for the top and bottom. Cloudswrest (talk) 17:55, 26 June 2014 (UTC)

File:Dynkin diagram E8.png listed for deletion

A file that you uploaded or altered, File:Dynkin diagram E8.png, has been listed at Wikipedia:Files for deletion. Please see the discussion to see why it has been listed (you may have to search for the title of the image to find its entry). Feel free to add your opinion on the matter below the nomination. Thank you. Stefan2 (talk) 22:28, 29 December 2014 (UTC)

Desuspension

Hi,

I have just noticed that you contributed a lot to write about suspension (topology). I have tried to write about desuspension, an opposite operation. May you review my work? I am not a professional mathematician, but high-profile math has been my passion since my childhood. Cheers! Lamro (talk) 14:26, 23 June 2015 (UTC)

ArbCom elections are now open!

Hi,
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Please claim your upload(s): File:YonedaLemma-01.png

Hi, This image was seemingly uploaded prior to current image polices, Thank you.

However, as part of ongoing efforts to ensure all media on English Wikipedia is correctly licensed and attributed it would be appreciated if you were able to confirm, that it was your own work, by marking it as {{own}}, amending the {{information}} added by a third party, and by changing the license to an appropriate "self" variant. You can also add |claimed=yes to the {{media by uploader}} tag if it is present to indicate that you've acknowledged the image, and license shown (and updated the {{information}} where appropriate).

This will assist those reviewing the many many "free" images on commons that have not yet been transfered to Commons. Sfan00 IMG (talk) 14:56, 6 August 2016 (UTC)

ArbCom Elections 2016: Voting now open!

Hello, Fropuff. Voting in the 2016 Arbitration Committee elections is open from Monday, 00:00, 21 November through Sunday, 23:59, 4 December to all unblocked users who have registered an account before Wednesday, 00:00, 28 October 2016 and have made at least 150 mainspace edits before Sunday, 00:00, 1 November 2016.

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ArbCom Elections 2016: Voting now open!

Hello, Fropuff. Voting in the 2016 Arbitration Committee elections is open from Monday, 00:00, 21 November through Sunday, 23:59, 4 December to all unblocked users who have registered an account before Wednesday, 00:00, 28 October 2016 and have made at least 150 mainspace edits before Sunday, 00:00, 1 November 2016.

The Arbitration Committee is the panel of editors responsible for conducting the Wikipedia arbitration process. It has the authority to impose binding solutions to disputes between editors, primarily for serious conduct disputes the community has been unable to resolve. This includes the authority to impose site bans, topic bans, editing restrictions, and other measures needed to maintain our editing environment. The arbitration policy describes the Committee's roles and responsibilities in greater detail.

If you wish to participate in the 2016 election, please review the candidates' statements and submit your choices on the voting page. MediaWiki message delivery (talk) 22:08, 21 November 2016 (UTC)

Thank You

	For being great
	You are very smart NikolaiHo☎️ 06:50, 26 November 2017 (UTC)

ArbCom 2017 election voter message

Hello, Fropuff. Voting in the 2017 Arbitration Committee elections is now open until 23.59 on Sunday, 10 December. All users who registered an account before Saturday, 28 October 2017, made at least 150 mainspace edits before Wednesday, 1 November 2017 and are not currently blocked are eligible to vote. Users with alternate accounts may only vote once.

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Please claim your upload(s): File:YonedaLemma-01.png

Hi, This media was seemingly uploaded prior to current image polices,

However, due to changes in the copyright situation in some jurisdictions, there is a need to ensure media on English Wikipedia is correctly licensed and attributed. It would be appreciated if you were able to confirm that it was your own work, by marking it as {{own}}, Fully completeing the {{information}} block, and leaving an acknowledgement on the file description page to indicate that you've accepted the license shown (and updated the {{information}} accordingly. If you have other uploads, please consider "claiming" them in a similar manner, You can find a list of files you have created here.

If the {{img-unclaimed}} tag is present, please update it to {{img-claimed}} if you have carried out the steps noted above.

If you don't want to keep your media on English Wikipedia, please nominate it for deletion under Criteria G7 of the Criteria for Speedy deletion ShakespeareFan00 (talk) 13:47, 13 September 2018 (UTC)

ShakespeareFan00 (talk) 07:50, 14 September 2018 (UTC)

ArbCom 2018 election voter message

Hello, Fropuff. Voting in the 2018 Arbitration Committee elections is now open until 23.59 on Sunday, 3 December. All users who registered an account before Sunday, 28 October 2018, made at least 150 mainspace edits before Thursday, 1 November 2018 and are not currently blocked are eligible to vote. Users with alternate accounts may only vote once.

The Arbitration Committee is the panel of editors responsible for conducting the Wikipedia arbitration process. It has the authority to impose binding solutions to disputes between editors, primarily for serious conduct disputes the community has been unable to resolve. This includes the authority to impose site bans, topic bans, editing restrictions, and other measures needed to maintain our editing environment. The arbitration policy describes the Committee's roles and responsibilities in greater detail.

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"Quadratic field extension" listed at Redirects for discussion

An editor has identified a potential problem with the redirect Quadratic field extension and has thus listed it for discussion. This discussion will occur at Wikipedia:Redirects for discussion/Log/2022 February 8#Quadratic field extension until a consensus is reached, and anyone, including you, is welcome to contribute to the discussion. ~~~~
User:1234qwer1234qwer4 (talk) 11:43, 8 February 2022 (UTC)

Nomination of Examples of vector spaces for deletion

A discussion is taking place as to whether the article Examples of vector spaces is suitable for inclusion in Wikipedia according to Wikipedia's policies and guidelines or whether it should be deleted.

The article will be discussed at Wikipedia:Articles for deletion/Examples of vector spaces until a consensus is reached, and anyone, including you, is welcome to contribute to the discussion. The nomination will explain the policies and guidelines which are of concern. The discussion focuses on high-quality evidence and our policies and guidelines.

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GeoffreyT2000 (talk) 15:27, 16 February 2022 (UTC)

"Locally small category" listed at Redirects for discussion

An editor has identified a potential problem with the redirect Locally small category and has thus listed it for discussion. This discussion will occur at Wikipedia:Redirects for discussion/Log/2022 September 23#Locally small category until a consensus is reached, and anyone, including you, is welcome to contribute to the discussion. 1234qwer1234qwer4 08:25, 23 September 2022 (UTC)

Proposed deletion of File:UniversalProperty-01.png

The file File:UniversalProperty-01.png has been proposed for deletion because of the following concern:

Orphaned. Superseded by File:Universal morphism definition.svg

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Please consider addressing the issues raised. Removing {{proposed deletion/dated files}} will stop the proposed deletion process, but other deletion processes exist. In particular, the speedy deletion process can result in deletion without discussion, and files for discussion allows discussion to reach consensus for deletion. Someone who's wrong on the internet (talk) 09:03, 2 April 2023 (UTC)

Proposed deletion of File:UniversalProperty-02.png

The file File:UniversalProperty-02.png has been proposed for deletion because of the following concern:

Orphaned. Superseded by File:Universal morphism definition.svg.

While all constructive contributions to Wikipedia are appreciated, pages may be deleted for any of several reasons.

You may prevent the proposed deletion by removing the {{proposed deletion/dated files}} notice, but please explain why in your edit summary or on the file's talk page.

Please consider addressing the issues raised. Removing {{proposed deletion/dated files}} will stop the proposed deletion process, but other deletion processes exist. In particular, the speedy deletion process can result in deletion without discussion, and files for discussion allows discussion to reach consensus for deletion. Someone who's wrong on the internet (talk) 09:05, 2 April 2023 (UTC)

"Quotient map" listed at Redirects for discussion

The redirect Quotient map has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Anyone, including you, is welcome to comment on this redirect at Wikipedia:Redirects for discussion/Log/2023 April 18 § Quotient map until a consensus is reached. 1234qwer1234qwer4 11:26, 18 April 2023 (UTC)