Recently Published
List Graphs and Distance\u002Dconsistent Node Labelings Image
Journal article

List Graphs and Distance-consistent Node Labelings

Rainbow Perfect Domination in Lattice Graphs Image
Rainbow Perfect Domination in Lattice Graphs Image

Rainbow Perfect Domination in Lattice Graphs

New Bounds on the Hyper\u002DZagreb Index for the Simple Connected Graphs Image
New Bounds on the Hyper\u002DZagreb Index for the Simple Connected Graphs Image

New Bounds on the Hyper-Zagreb Index for the Simple Connected Graphs

Computation of Gutman Index of Some Cactus Chains Image
Computation of Gutman Index of Some Cactus Chains Image

Computation of Gutman Index of Some Cactus Chains

Ramanujan Graphs Arising as Weighted Galois Covering Graphs Image
Journal article

Ramanujan Graphs Arising as Weighted Galois Covering Graphs

On Classes of Neighborhood Resolving Sets of a Graph Image
Journal article

On Classes of Neighborhood Resolving Sets of a Graph

On Imbalances In Multipartite Multidigraphs Image
Journal article

On Imbalances In Multipartite Multidigraphs

Ramanujan Graphs Arising as Weighted Galois Covering Graphs Image
Ramanujan Graphs Arising as Weighted Galois Covering Graphs Image
Journal article

Ramanujan Graphs Arising as Weighted Galois Covering Graphs

On Classes of Neighborhood Resolving Sets of a Graph Image
On Classes of Neighborhood Resolving Sets of a Graph Image
Journal article

On Classes of Neighborhood Resolving Sets of a Graph

On Imbalances In Multipartite Multidigraphs Image
On Imbalances In Multipartite Multidigraphs Image
Journal article

On Imbalances In Multipartite Multidigraphs

Most Viewed
The Eccentric\u002Ddistance Sum of Some Graphs Image
Journal article

The Eccentric-distance Sum of Some Graphs

Let $G = (V,E)$ be a simple connected graph. Theeccentric-distance sum of $G$ is defined as$\xi^{ds}(G) =\ds\sum_{\{u,v\}\subseteq V(G)} [e(u)+e(v)] d(u,v)$, where $e(u)$ %\dsis the eccentricity of the vertex $u$ in $G$ and $d(u,v)$ is thedistance between $u$ and $v$. In this paper, we establish formulaeto calculate the eccentric-distance sum for some graphs, namelywheel, star, broom, lollipop, double star, friendship, multi-stargraph and the join of $P_{n-2}$ and $P_2$.
Inverse Graphs Associated with Finite Groups Image
Journal article

Inverse Graphs Associated with Finite Groups

Let $(\Gamma,*)$ be a finite group and $S$ a possibly empty subset of $\Gamma$ containing its non-self-invertible elements. In this paper, we introduce the inverse graph associated with $\Gamma$ whose set of vertices coincides with $\Gamma$ such that two distinct vertices $u$ and $v$ are adjacent if and only if either $u * v\in S$ or $v * u\in S$. We then investigate its algebraic and combinatorial structures.
A Note on the Edge Roman Domination in Trees Image
Journal article

A Note on the Edge Roman Domination in Trees

Efficient Maximum Matching Algorithms for Trapezoid Graphs Image
Journal article

Efficient Maximum Matching Algorithms for Trapezoid Graphs

On the Connectivity of $K$\u002Ddistance Graphs Image
Journal article

On the Connectivity of $K$-distance Graphs

On the Spectrum of a Class of Distance\u002Dtransitive Graphs Image
Journal article

On the Spectrum of a Class of Distance-transitive Graphs

A Note on the Edge Roman Domination in Trees Image
A Note on the Edge Roman Domination in Trees Image
Journal article

A Note on the Edge Roman Domination in Trees

Efficient Maximum Matching Algorithms for Trapezoid Graphs Image
Efficient Maximum Matching Algorithms for Trapezoid Graphs Image
Journal article

Efficient Maximum Matching Algorithms for Trapezoid Graphs

On the Connectivity of $K$\u002Ddistance Graphs Image
On the Connectivity of $K$\u002Ddistance Graphs Image
Journal article

On the Connectivity of $K$-distance Graphs

On the Spectrum of a Class of Distance\u002Dtransitive Graphs Image
On the Spectrum of a Class of Distance\u002Dtransitive Graphs Image
Journal article

On the Spectrum of a Class of Distance-transitive Graphs

Automorphism Group of Certain Power Graphs of Finite Groups Image
Automorphism Group of Certain Power Graphs of Finite Groups Image
Journal article

Automorphism Group of Certain Power Graphs of Finite Groups

On Size Multipartite Ramsey Numbers for Stars Versus Paths and Cycles Image
On Size Multipartite Ramsey Numbers for Stars Versus Paths and Cycles Image
Journal article

On Size Multipartite Ramsey Numbers for Stars Versus Paths and Cycles

On H\u002Dirregularity Strengths of G\u002Damalgamation of Graphs Image
On H\u002Dirregularity Strengths of G\u002Damalgamation of Graphs Image
Journal article

On H-irregularity Strengths of G-amalgamation of Graphs

Suggested For You
On Some Covering Graphs of a Graph Image
Journal article

On Some Covering Graphs of a Graph

For a graph $G$ with vertex set $V(G)=\{v_1, v_2, \dots, v_n\}$, let $S$ be the covering set of $G$ having the maximum degree over all the minimum covering sets of $G$. Let $N_S[v]=\{u\in S : uv \in E(G) \}\cup \{v\}$ be the closed neighbourhood of the vertex $v$ with respect to $S.$ We define a square matrix $A_S(G)= (a_{ij}),$ by $a_{ij}=1,$ if $\left |N_S[v_i]\cap N_S[v_j] \right| \geq 1, i\neq j$ and 0, otherwise. The graph $G^S$ associated with the matrix $A_S(G)$ is called the maximum degree minimum covering graph (MDMC-graph) of the graph $G$. In this paper, we give conditions for the graph $G^S$ to be bipartite and Hamiltonian. Also we obtain a bound for the number of edges of the graph $G^S$ in terms of the structure of $G$. Further we obtain an upper bound for covering number (independence number) of $G^S$ in terms of the covering number (independence number) of $G$.
Computing the Edge Irregularity Strengths of Chain Graphs and the Join of Two Graphs Image
Journal article

Computing the Edge Irregularity Strengths of Chain Graphs and the Join of Two Graphs

Routed Planar Networks Image
Journal article

Routed Planar Networks

Spectra of the Extended Neighborhood Corona and Extended Corona of Two Graphs Image
Journal article

Spectra of the Extended Neighborhood Corona and Extended Corona of Two Graphs

Computing the Edge Irregularity Strengths of Chain Graphs and the Join of Two Graphs Image
Computing the Edge Irregularity Strengths of Chain Graphs and the Join of Two Graphs Image
Journal article

Computing the Edge Irregularity Strengths of Chain Graphs and the Join of Two Graphs

Routed Planar Networks Image
Routed Planar Networks Image
Journal article

Routed Planar Networks

Spectra of the Extended Neighborhood Corona and Extended Corona of Two Graphs Image
Spectra of the Extended Neighborhood Corona and Extended Corona of Two Graphs Image
Journal article

Spectra of the Extended Neighborhood Corona and Extended Corona of Two Graphs

Journal article

H-E-Super Magic Decomposition of Graphs

H\u002DE\u002DSuper Magic Decomposition of Graphs Image
Journal article

Modular Colorings of Join of Two Special Graphs

Modular Colorings of Join of Two Special Graphs Image
Journal article

The Signed Roman Domatic Number of a Digraph

The Signed Roman Domatic Number of a Digraph Image
Read more articles