نتایج جستجو برای: total irregularity index
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A total edge-irregular k-labelling ξ : V (G) ∪ E(G) → {1, 2, . . . , k} of a graph G is a labelling of vertices and edges of G in such a way that for any different edges e and f their weights wt(e) and wt(f) are distinct. The weight wt(e) of an edge e = xy is the sum of the labels of vertices x and y and the label of the edge e. The minimum k for which a graph G has a total edge-irregular k-lab...
بررسی میزان Relapse درمان های ارتودنسی و عوامل مرتبط با آن دکتر احمد شیبانی نیا 1 # مهندس ناصر ولایی 2 دکتر محمد علی صغیری 3 دکتر میترا وثوقی 4 دکتر مهران نوربخش 5 1- استادیار گروه ارتودنسی واحد دندانپزشکی دانشگاه آزاد اسلامی تهران 2- عضو هیئت علمی واحد دندانپزشکی دانشگاه آزاد اسلامی تهران 3- استادیار گروه مواد دندانی واحد دندانپزشکی دانشگاه آزاد اسلامی تهران 4- دندانپزشک 5- است...
Martin Bača et al. [2] introduced the problem of determining the total vertex irregularity strengths of graphs. In this paper we discuss how the addition of new edge affect the total vertex irregularity strength.
We consider only finite undirected graphs without loops or multiple edges. For terminology and notation not defined here we refer the reader to Bondy and Murty’s textbook [6]. In this note we investigate irregularity measures of graphs. A graph is regular if all its vertices have the same degree, otherwise it is irregular. However, it is of interest to measure how irregular it is. Several appro...
in this paper, we introduce the notions of product vague graph, balanced product vague graph, irregularity and total irregularity of any irregular vague graphs and some results are presented. also, density and balanced irregular vague graphs are discussed and some of their properties are established. finally we give an application of vague digraphs.
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