Results 81 to 90 of about 4,473 (174)
ABSTRACT Background The impact of various imaging techniques on the safety and outcomes of atrial fibrillation (AF) ablation remains unclear. Intra‐procedural three‐dimensional rotational angiography (3DRA) is the least used imaging method despite some benefits.
Ivan Prepolec +8 more
wiley +1 more source
On the Zagreb indices as complexity indices
Two original Zagreb indices, denoted M(1) and M(2), and introduced in 1972, were symmetry-modified by summing up only degrees (SMM(1)) or edge-weights (SMM(2)) of symmetry nonequivalent vertices or edges of graphs. Their dependence on the structural features and symmetry of molecular graphs is studied.
Nikolić, Sonja +3 more
openaire +1 more source
Let G = (V, E) be a simple graph with n = vertical bar V vertical bar vertices and m = vertical bar E vertical bar edges ; let d(1), d(2), ..., d(n) denote the degrees of the vertices of G. If Delta = max d(i)
Hansen, Pierre, Vukičević, Damir
openaire +4 more sources
Reformulated Zagreb Indices of Trees [PDF]
Zagreb indices were reformulated in terms of the edge degrees instead of the vertex degrees. For a graph $G$, the first and second reformulated Zagreb indices are defined respectively as:$$EM_1(G)=\sum_{\varepsilon\in E(G)}d^2(\varepsilon), EM_2(G)=
Nasrin Dehgardi
core +1 more source
Modeling benzene physicochemical properties using Zagreb upsilon indices
Quantitative structure–property relationship (QSPR) frameworks leverage topological indices to model the physicochemical attributes of molecular structures.
Çiftçi, İdris +2 more
core +1 more source
Relations between the first and second Zagreb indices of subdivision graphs
The first and second Zagreb indices of a graph are two of the topological invariants used in molecular calculations by Mathematicians and Chemists. First Zagreb index and multiplicative Zagreb indices, all versions of Zagreb indices of subdivision graphs,
Togan, Müge +2 more
core +1 more source
Extremal values on Zagreb indices of trees with given distance k-domination number. [PDF]
Pei L, Pan X.
europepmc +1 more source
Zagreb indices of some algrbraic graphs
Yüksek Lisans TeziGraf teori, uygulamalı matematiğin çok kullanışlı bir alanıdır. Günlük hayata dair birçok probleme çözüm sunabilmiş olması, graf teoriye ve uygulamalarına olan ilgiyi son yıllarda arttırmıştır. Graf teorinin önemli uygulamalarından olan
Çelik, Ayşe
core
On Banhatti and Zagreb Indices
Let G = (V;E) be a connected graph. The Zagreb indices were in-troduced as early as in 1972. They are dened as M1(G) =Σ uv2E(G)[dG(u)+ dG(v)] and M2(G) = Σ uv2E(G) dG(u)dG(v), where dG(u) denotes the degree of a vertex u.
Gutman, I. +3 more
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