Results 41 to 50 of about 2,773,301 (295)

Effects of Alterations in Resting-State Neural Networks on the Severity of Neuropathic Pain after Spinal Cord Injury

open access: yesBioengineering, 2023
Neuropathic pain (NP) following spinal cord injury (SCI) is refractory to pain control strategies, and the underlying neuronal mechanisms remain poorly understood.
Eunhee Park   +6 more
doaj   +1 more source

Vertex semi-middle graph of a graph

open access: yesMalaya Journal of Matematik, 2019
In this communication, the vertex semi-middle graph of a graph $M_v(G)$ is introduced. We obtain a characterization of graphs whose $M_v(G)$ is planar, outerplanar and minimally non-outerplanar. Further, we obtain $M_v(G)$ is Eulerian, crossing number one and crossing number two.
null Rajendra Prasad K C   +2 more
openaire   +1 more source

Forcing (G,D)-number of a Graph [PDF]

open access: yes, 2011
By a graph G=(V,E), we mean a finite, undirected connected graph without loops and multiple ...
Nagarajan, A.   +3 more
core   +1 more source

Properties of Hereditary Hypergraphs and Middle Graphs [PDF]

open access: yesCanadian Mathematical Bulletin, 1978
AbstractThe middle graph of a graph G=( V, E) is the graph M(G) = (V∪E, E′), in which two vertices u, v are adjacent if either M is a vertex in V and v is an edge in E containing u, or u and v are edges in E having a vertex in common. Middle graphs have been characterized in terms of line graphs by Hamada and Yoshimura [7], who also investigated their ...
Cockayne, E. J.   +2 more
openaire   +1 more source

Middle school students’ graph skills and affective states about graphs

open access: yes, 2020
This survey design study was designed to test whether the graph skills and affective states of middle school students about graphs differ by their gender, grade level, and graph types (line, bar, and pie). The data collection instruments consisted of two
Bursal, Murat   +3 more
core   +1 more source

On Pathos Semitotal and Total Block Graph of a Tree [PDF]

open access: yes, 2011
The concept of pathos of a graph G was introduced by Harary [2], as a collection of minimum number of line disjoint open paths whose union is G. The path number of a graph G is the number of paths in pathos.
Muddebihal M. H.
core   +1 more source

Graph equations for line graphs, total graphs, middle graphs and quasi-total graphs

open access: yesDiscrete Mathematics, 1984
Let G be a simple finite and connected graph with the vertex set V(G) and the edge set X(G). Let V'(G) be the family of all one-point subsets of V(G). Both the line graph L(G) of G and the total graph T(G) of G are standard graph theoretical concepts. The middle graph M(G) of G is the intersection graph of \(V'(G)\cup X(G)\) and the quasi-total graph P(
D. V. S. Sastry, B. Syam Prasad Raju
openaire   +3 more sources

Computation of Vertex-Based Topological Indices of Middle Graph of Alkane CtH2t+2

open access: yesJournal of Mathematics, 2022
Alkanes are the primary constituents of methane or natural gas that can also be found in volcanic crust. As a result of methane as a heat source, humans may cook without using any fuel in a volcanic environment.
Muhammad Shoaib Sardar   +5 more
doaj   +1 more source

The H-Line Signed Graph of a Signed Graph [PDF]

open access: yes, 2010
For standard terminology and notion in graph theory we refer the reader to Harary; the non-standard will be given in this paper as and when required.
Reddy, Siva Kota   +2 more
core   +1 more source

Signed Graph Equation [PDF]

open access: yes, 2009
For standard terminology and notion in graph theory we refer the reader to Harary [7]; the non-standard will be given in this paper as and when required.
Reddy, P. Siva Kota   +3 more
core   +1 more source

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