User talk:Stefan Kohl

Welcome![edit]

Hello, Stefan Kohl, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are some pages that you might find helpful:

Quick introduction to Wikipedia
How to write a great article
Ten Simple Rules for Editing Wikipedia, an essay from PLoS
Identifying reliable sources (general advice)
Wikipedia's Manual of Style

I hope you enjoy editing here and being a Wikipedian! Please sign your messages on discussion pages using four tildes (~~~~); this will automatically insert your username and the date. If you need help, check out Wikipedia:Questions, ask me on my talk page, or ask your question and then place {{helpme}} before the question on your talk page.

Square root of x formula. Symbol of mathematics.

If you are interested in mathematics-related themes, you may want to check out the Mathematics Portal.
If you are interested in improving mathematics-related articles, you may want to join WikiProject Mathematics (sign up here or say hello here).

Again, welcome! Deltahedron (talk) 18:13, 21 July 2014 (UTC)[reply]

Residue-class-wise affine group[edit]

You seem to have contributed almost all of this article, and it is sourced to papers by someone with the same name as you. You might like to review the guidelines at Wikipedia:Conflict of interest#Citing yourself. It would also help if you could find some independent reliable sources to help establish the notability of this topic. Deltahedron (talk) 18:13, 21 July 2014 (UTC)[reply]