Results 51 to 60 of about 42,000 (265)

Sombor energy and Hückel rule [PDF]

open access: yesDiscrete Mathematics Letters, 2022
Ivan Gutman, Izudin Redžepović
doaj   +1 more source

Distance Degree Index of Some Derived Graphs

open access: yesMathematics, 2019
Topological indices are numerical values associated with a graph (structure) that can predict many physical, chemical, and pharmacological properties of organic molecules and chemical compounds.
Jianzhong Xu   +6 more
doaj   +1 more source

The (a,b)-Zagreb index of line graphs of subdivision graphs of some molecular structures

open access: yesInternational Journal of Mathematics for Industry, 2020
A graph is a mathematical model used to predict the topology of a given system. In chemical graph theory, a graph is designed by considering atoms as vertices and edges as bonds between atoms of a particular molecule.
Prosanta Sarkar, Anita Pal, Nilanjan De
doaj   +1 more source

Multidimensional Profiling of MRI‐Negative Temporal Lobe Epilepsy Uncovers Distinct Phenotypes

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Although hippocampal sclerosis (TLE‐HS) represents the most frequent cause of temporal lobe epilepsy (TLE), up to 30% of patients show no lesion on visual MRI inspection (TLE‐MRIneg). These cases pose diagnostic and therapeutic challenges and are underrepresented in surgical series.
Alice Ballerini   +28 more
wiley   +1 more source

On edge-graceful labeling and deficiency for regular graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2018
An edge-graceful labeling of a finite simple graph with vertices and edges is a bijection from the set of edges to the set of integers such that the vertex sums are pairwise distinct modulo , where the vertex sum at a vertex is the sum of labels of all ...
Tao-Ming Wang, Guang-Hui Zhang
doaj   +2 more sources

On Conditional Connectivity of the Cartesian Product of Cycles

open access: yesDiscussiones Mathematicae Graph Theory, 2023
The conditional h-vertex (h-edge) connectivity of a connected graph H of minimum degree k > h is the size of a smallest vertex (edge) set F of H such that H − F is a disconnected graph of minimum degree at least h. Let G be the Cartesian product of r ≥ 1
Saraf J.B., Borse Y.M., Mundhe Ganesh
doaj   +1 more source

Onasemnogene Abeparvovec in Type I Spinal Muscular Atrophy: 24‐Month Follow‐Up From the Italian Registry

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Onasemnogene abeparvovec (OA) is an AAV9‐based gene therapy for spinal muscular atrophy type I (SMA I). Real‐world outcomes show increased response variability compared to clinical trials, and follow‐up data beyond 12–18 months are limited.
Marika Pane   +43 more
wiley   +1 more source

Extremal Values on the General Degree–Eccentricity Index of Unicyclic Graphs of Fixed Diameter

open access: yesJournal of Mathematics
For a connected graph G and two real numbers a,b, the general degree–eccentricity index of G is given by DEIa,bG=∑v∈VGdGavecGbv, where VG represent the vertex set of graph G, dGv denotes the degree of vertex v, and ecGv is the eccentricity of v in G ...
Mesfin Masre
doaj   +1 more source

On the Trees With Maximal Augmented Zagreb Index

open access: yesIEEE Access, 2018
The augmented Zagreb index (AZI), a variant of the well-known atom-bond connectivity (ABC) index, was shown to have the best predicting ability for a variety of physicochemical properties among several tested vertex-degree-based topological indices ...
Wenshui Lin   +4 more
doaj   +1 more source

Degree of a Vertex in Max-Product of Intuitionistic Fuzzy Graph

open access: yesInternational Journal of Recent Technology and Engineering (IJRTE), 2019
Graph theory has applications in many areas of computer science, including data mining, image segmentation, clustering and networking. Product on graphs has a wide range of application in networking system, automata theory, game theory and structural mechanics. In many cases, some aspects of a graph-theoretic problem may be uncertain.
S.Yahya Mohamed*, A.Mohamed Ali*
openaire   +1 more source

Home - About - Disclaimer - Privacy