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Clear graph of a ring
Indian Journal of Pure and Applied Mathematics ( IF 0.7 ) Pub Date : 2024-04-04 , DOI: 10.1007/s13226-024-00581-9
Shabir Ahmad Mir , Cihat Abdioğlu , Nadeem ur Rehman , Mohd Nazim , Muhammed Akkafa , Ece Yetkin Çelikel

This research article introduces the concept of the clear graph associated with a ring \({\mathcal {R}}\) with identity, denoted as \(Cr({\mathcal {R}})\). This graph comprises vertices of the form \(\{(x,u):\) x is a unit regular element of R and u is a unit of \({\mathcal {R}}\)} and two distinct vertices (xu) and (yv) are adjacent if and only if either \(xy=yx=0\) or \(uv=vu=1\). This research article also focuses on a specific subgraph of \(Cr({\mathcal {R}})\) denoted as \(Cr_2({\mathcal {R}})\), which is formed by vertices \(\{(x,u) :x\) is a nonzero unit regular element of \(R \}\). The significance of \(Cr_2({\mathcal {R}})\) within the context of \(Cr{({\mathcal {R}})}\) is explored in the article. Taken \(Cr_2({\mathcal {R}})\) into consideration, we found connectedness, regularity, planarity, and outer planarity. Moreover, we characterized the ring \({\mathcal {R}}\) for which \(Cr_2({\mathcal {R}})\) is unicyclic, a tree and a split graph. Finally, we have found genus one of \(Cr_2({\mathcal {R}})\).



中文翻译:

清晰的环图

本文介绍了与恒等环\({\mathcal {R}}\)相关的清晰图的概念,表示为\(Cr({\mathcal {R}})\)。该图由\(\{(x,u):\) 形式的顶点组成,x是R的单位正则元素,u是\({\mathcal {R}}\) }的单位,以及两个不同的顶点 ( xu ) 和 ( yv ) 相邻当且仅当\(xy=yx=0\)\(uv=vu=1\)。本文还重点关注\(Cr({\mathcal {R}})\)的一个特定子图,表示为\(Cr_2({\mathcal {R}})\),它由顶点\(\{ (x,u) :x\)是\(R \}\)的非零单位正则元素。本文探讨了\(Cr_2({\mathcal {R}})\)在\(Cr{({\mathcal {R}})}\)背景下的重要性。考虑到\(Cr_2({\mathcal {R}})\),我们发现了连通性、规律性、平面性和外部平面性。此外,我们还描述了环\({\mathcal {R}}\)(其中\(Cr_2({\mathcal {R}})\)是单圈)、树和分裂图。最后,我们找到了\(Cr_2({\mathcal {R}})\)的属一。

更新日期:2024-04-04
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