User talk:Pentti Haukkanen

Pentti Haukkanen, you are invited to the Teahouse!

Hi Pentti Haukkanen! Thanks for contributing to Wikipedia. Be our guest at the Teahouse! The Teahouse is a friendly space where new editors can ask questions about contributing to Wikipedia and get help from experienced editors like Cordless Larry (talk). Visit the Teahouse We hope to see you there! Delivered by HostBot on behalf of the Teahouse hosts 16:11, 5 May 2020 (UTC)

GCD matrix

Let $S=\{x_{1},x_{2},\ldots ,x_{n}\}$ be a set of positive integers. Then the $n\times n$ matrix $(S)$ having the greatest common divisor $(x_{i},x_{j})$ as its $ij$ entry is referred to as the GCD matrix on $S$. The LCM matrix $[S]$ is defined analogously.

Bourque-Ligh Conjecture: Bourque and Ligh (1992) conjectured that the LCM matrix on a GCD-closed set S is nonsingular. This conjecture was shown to be false by Haukkanen, Wang and Sillanpää (1997) and subsequently by Hong (1999).</ref>

Speedy deletion nomination of GCD matrix

Hello, Pentti Haukkanen

I wanted to let you know that I just tagged GCD matrix for deletion, because it seems to be inappropriate for a variety of reasons. For more details please see the notice on the article.

If you feel that the article shouldn't be deleted and want more time to work on it, you can contest this deletion, but don't remove the speedy deletion tag from the top.

You can leave a note on my talk page if you have questions. Thanks!

(Message delivered via the Page Curation tool, on behalf of the reviewer.)

CentreLeftRight ✉ 07:09, 9 April 2022 (UTC)

Perpendicularity in an Abelian group moved to draftspace

Thanks for your contributions to Perpendicularity in an Abelian group. Unfortunately, I do not think it is ready for publishing at this time because it needs more sources to establish notability. I have converted your article to a draft which you can improve, undisturbed for a while.

Please see more information at Help:Unreviewed new page. When the article is ready for publication, please click on the "Submit your draft for review!" button at the top of the page OR move the page back. microbiologyMarcus ^{(petri dish·growths)} 19:43, 20 December 2023 (UTC)

Wikipedia and copyright

Hello Pentti Haukkanen! Your additions to Multiplicative function have been removed in whole or in part, as they appear to have added copyrighted content without evidence that the source material is in the public domain or has been released by its owner or legal agent under a suitably free and compatible copyright license. (To request such a release, see Wikipedia:Requesting copyright permission.) While we appreciate your contributions to Wikipedia, it's important to understand and adhere to guidelines about using information from sources to prevent copyright and plagiarism issues. Here are the key points:

• Limited quotation: You may only copy or translate a small portion of a source. Any direct quotations must be enclosed in double quotation marks (") and properly cited using an inline citation. More information is available on the non-free content page. To learn how to cite a source, see Help:Referencing for beginners.
• Paraphrasing: Beyond limited quotations, you are required to put all information in your own words. Following the source's wording too closely can lead to copyright issues and is not permitted; see Wikipedia:Close paraphrasing. Even when paraphrasing, you must still cite your sources as appropriate.
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It's very important that contributors understand and follow these practices. Persistent failure to comply may result in being blocked from editing. If you have any questions or need further clarification, please ask them here on this page, or leave a message on my talk page. Thank you. — Diannaa (talk) 14:18, 25 April 2024 (UTC)