Compressed commuting graphs of matrix rings

التفاصيل البيبلوغرافية
العنوان: Compressed commuting graphs of matrix rings
المؤلفون: Boroja, Ivan-Vanja, Dorbidi, Hamid Reza, Bukovšek, Damjana Kokol, Stopar, Nik
سنة النشر: 2023
المجموعة: Mathematics
مصطلحات موضوعية: Mathematics - Rings and Algebras, 05C25, 15A27, 18A99
الوصف: In this paper we introduce compressed commuting graph of rings. It can be seen as a compression of the standard commuting graph (with the central elements added) where we identify the vertices that generate the same subring. The compression is chosen in such a way that it induces a functor from the category of rings to the category of graphs, which means that our graph takes into account not only the commutativity relation in the ring, but also the commutativity relation in all of its homomorphic images. Furthermore, we show that this compression is best possible for matrix algebras over finite fields. We compute the compressed commuting graphs of finite fields and rings of $2 \times 2$ matrices over finite fields.
Comment: 17 pages
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2309.09656
رقم الأكسشن: edsarx.2309.09656
قاعدة البيانات: arXiv