Keyword Index

A

  • Adjacency matrix A construction of cospectral signed line graphs [Volume 11, Issue 3, 2026, Pages 985-993]
  • Albertson Index On the inverse problem of some bond additive indices [Volume 11, Issue 2, 2026, Pages 433-447]
  • AP -efficiency Two techniques to reduce the Pareto optimal solutions in multiobjective optimization problems [Volume 11, Issue 1, 2026, Pages 171-188]
  • Approximation algorithm Constant-Ratio polynomial time approximation of the asymmetric minimum weight cycle cover problem with limited number of cycles [Volume 11, Issue 2, 2026, Pages 419-432]
  • Asymmetric Traveling Salesman Problem Constant-Ratio polynomial time approximation of the asymmetric minimum weight cycle cover problem with limited number of cycles [Volume 11, Issue 2, 2026, Pages 419-432]
  • Atomic domain On the comaximal graph of a non-quasi-local atomic domain [Volume 11, Issue 1, 2026, Pages 33-48]

B

  • Binet formula Hyperbolic $k$-Mersenne and $k$-Mersenne-Lucas Quaternions with it’s associated Spinor algebra [Volume 11, Issue 2, 2026, Pages 521-537]
  • Block-cactus graph Algorithmic Results on Independent Roman {2}-Domination [Volume 11, Issue 2, 2026, Pages 599-627]

C

  • Cacti Sharp bounds on additively weighted Mostar index of cacti [Volume 11, Issue 1, 2026, Pages 117-130]
  • Capacitated p-median problem A traffic-based model to the $p$-median problem in congested networks [Volume 11, Issue 2, 2026, Pages 335-361]
  • Catalan Identity Hyperbolic $k$-Mersenne and $k$-Mersenne-Lucas Quaternions with it’s associated Spinor algebra [Volume 11, Issue 2, 2026, Pages 521-537]
  • Commutative rings On cozero divisor graphs of ring $Z_n$ [Volume 11, Issue 1, 2026, Pages 227-245]
  • Commuting hypergraphs Hypergraphs defined on algebraic structures [Volume 11, Issue 1, 2026, Pages 131-144]
  • Complement On the energy of the line graph of unitary Cayley graphs [Volume 11, Issue 1, 2026, Pages 297-306]
  • Corona graphs Graceful Coloring of some Corona graphs - An algorithmic approach [Volume 11, Issue 2, 2026, Pages 315-334]
  • Cozero divisor graphs On cozero divisor graphs of ring $Z_n$ [Volume 11, Issue 1, 2026, Pages 227-245]
  • Cozero divisor graphs Weighted topological indices of graphs [Volume 11, Issue 2, 2026, Pages 643-659]
  • Cycle Cover Problem Constant-Ratio polynomial time approximation of the asymmetric minimum weight cycle cover problem with limited number of cycles [Volume 11, Issue 2, 2026, Pages 419-432]

D

  • Digraphs Weak signed Roman $k$-domatic number of a digraph [Volume 11, Issue 2, 2026, Pages 449-464]
  • Dominated chromatic number Dominated chromatic number of some kinds of the generalized Helm graphs [Volume 11, Issue 3, 2026, Pages 843-856]
  • Domination number Dominated chromatic number of some kinds of the generalized Helm graphs [Volume 11, Issue 3, 2026, Pages 843-856]

E

  • Edge-degree On Connected Graphs with Integer-Valued Q-Spectral Radius [Volume 11, Issue 3, 2026, Pages 767-786]
  • Edge metric basis Edge metric dimension of silicate networks [Volume 11, Issue 1, 2026, Pages 287-296]
  • Edge Mostar Index On the inverse problem of some bond additive indices [Volume 11, Issue 2, 2026, Pages 433-447]
  • Eigenspace A construction of cospectral signed line graphs [Volume 11, Issue 3, 2026, Pages 985-993]
  • Energy On cozero divisor graphs of ring $Z_n$ [Volume 11, Issue 1, 2026, Pages 227-245]
  • Energy Geometric-arithmetic index-energy predicting the physical properties of alkanes [Volume 11, Issue 3, 2026, Pages 1013-1032]
  • Enhanced power hypergraphs Hypergraphs defined on algebraic structures [Volume 11, Issue 1, 2026, Pages 131-144]
  • EPPO-group Line graph characterization of the order supergraph of a finite group [Volume 11, Issue 2, 2026, Pages 407-417]
  • Estella graphs The Sombor index and multiplicative Sombor index of some products of graphs [Volume 11, Issue 3, 2026, Pages 787-826]
  • Estrada index New bounds on distance Estrada index of graphs [Volume 11, Issue 1, 2026, Pages 277-285]
  • Extremal Graph Theory Neighborhood first Zagreb index and maximal unicyclic and bicyclic graphs [Volume 11, Issue 2, 2026, Pages 563-580]
  • Extreme values Degree–based topological indices of a general random chain [Volume 11, Issue 3, 2026, Pages 897-909]

F

  • Fractional calculus On Hermite-Hadamard Type Inequalities in Stochastic Fractional Calculus [Volume 11, Issue 3, 2026, Pages 1059-1071]
  • Fuzzy labeling graph Edge graceful labeling on neutrosophic graphs [Volume 11, Issue 3, 2026, Pages 871-895]

G

  • Generalized Benders decomposition A traffic-based model to the $p$-median problem in congested networks [Volume 11, Issue 2, 2026, Pages 335-361]
  • General Sombor index Extremal trees for the general Sombor index [Volume 11, Issue 3, 2026, Pages 911-922]
  • Generating Function Hyperbolic $k$-Mersenne and $k$-Mersenne-Lucas Quaternions with it’s associated Spinor algebra [Volume 11, Issue 2, 2026, Pages 521-537]
  • Generating hypergraphs Hypergraphs defined on algebraic structures [Volume 11, Issue 1, 2026, Pages 131-144]
  • Geometric-Arithmetic index Geometric-arithmetic index-energy predicting the physical properties of alkanes [Volume 11, Issue 3, 2026, Pages 1013-1032]
  • Global distribution center Strong global distribution center of graphs [Volume 11, Issue 3, 2026, Pages 1047-1057]
  • Graceful chromatic number Graceful Coloring of some Corona graphs - An algorithmic approach [Volume 11, Issue 2, 2026, Pages 315-334]
  • Graph decomposition Decomposition of complete graphs into disconnected bipartite graphs with seven edges and eight vertices [Volume 11, Issue 2, 2026, Pages 661-684]
  • Graph energy On the energy of the line graph of unitary Cayley graphs [Volume 11, Issue 1, 2026, Pages 297-306]
  • Graph operation Edge corona product and its topological descriptors with applications in complex molecular structures [Volume 11, Issue 1, 2026, Pages 189-203]
  • Graph spectra Remarks on the bounds of graph energy [Volume 11, Issue 1, 2026, Pages 211-226]
  • Graph spectrum A complete characterization of spectra of the Randić matrix of level-wise regular trees [Volume 11, Issue 2, 2026, Pages 539-562]
  • Graphs products Strong global distribution center of graphs [Volume 11, Issue 3, 2026, Pages 1047-1057]

H

  • Hamiltonian On subdivisions of oriented cycles in Hamiltonian digraphs with small chromatic number [Volume 11, Issue 2, 2026, Pages 307-314]
  • Harary index On the reciprocal distance Laplacian spectral radius of graphs [Volume 11, Issue 1, 2026, Pages 259-268]
  • Helm graph Dominated chromatic number of some kinds of the generalized Helm graphs [Volume 11, Issue 3, 2026, Pages 843-856]
  • Hermite-Hadamard inequality On Hermite-Hadamard Type Inequalities in Stochastic Fractional Calculus [Volume 11, Issue 3, 2026, Pages 1059-1071]
  • Hyperbolic k-Mersenne quaternions Hyperbolic $k$-Mersenne and $k$-Mersenne-Lucas Quaternions with it’s associated Spinor algebra [Volume 11, Issue 2, 2026, Pages 521-537]
  • Hyperbolic k-Mersenne Spinors Hyperbolic $k$-Mersenne and $k$-Mersenne-Lucas Quaternions with it’s associated Spinor algebra [Volume 11, Issue 2, 2026, Pages 521-537]

I

  • Independent Roman {2}-domination Algorithmic Results on Independent Roman {2}-Domination [Volume 11, Issue 2, 2026, Pages 599-627]
  • Independent transversal dominating set Independent transversal domination subdivision number of trees [Volume 11, Issue 2, 2026, Pages 387-405]
  • Integers modulo n Additive closedness in subsets of $mathbb{Z}_n$ [Volume 11, Issue 2, 2026, Pages 487-501]
  • Integral graph On Connected Graphs with Integer-Valued Q-Spectral Radius [Volume 11, Issue 3, 2026, Pages 767-786]
  • Integral spectrum A construction of cospectral signed line graphs [Volume 11, Issue 3, 2026, Pages 985-993]
  • Intuitionistic fuzzy labeling graph Edge graceful labeling on neutrosophic graphs [Volume 11, Issue 3, 2026, Pages 871-895]
  • Inverse problem On the inverse problem of some bond additive indices [Volume 11, Issue 2, 2026, Pages 433-447]
  • Irreducible element On the comaximal graph of a non-quasi-local atomic domain [Volume 11, Issue 1, 2026, Pages 33-48]
  • Irredundance chromatic number Irredundance chromatic number and gamma chromatic number of trees [Volume 11, Issue 1, 2026, Pages 269-275]
  • Irregular property Edge graceful labeling on neutrosophic graphs [Volume 11, Issue 3, 2026, Pages 871-895]

L

  • Laplacian eigenvalues On relations between the modified hyper Wiener index and some degree based indices of trees [Volume 11, Issue 2, 2026, Pages 685-694]
  • Laplacian matrix Unbalanced complete bipartite signed graphs ${K_{m, n}}^{sigma}$ having $m$ and $n$ as Laplacian eigenvalues with maximum multiplicities [Volume 11, Issue 2, 2026, Pages 629-642]
  • Level-wise regular tree A complete characterization of spectra of the Randić matrix of level-wise regular trees [Volume 11, Issue 2, 2026, Pages 539-562]
  • Linear-time algorithm Algorithmic Results on Independent Roman {2}-Domination [Volume 11, Issue 2, 2026, Pages 599-627]
  • Line graph On the energy of the line graph of unitary Cayley graphs [Volume 11, Issue 1, 2026, Pages 297-306]
  • Line graph Line graph characterization of the order supergraph of a finite group [Volume 11, Issue 2, 2026, Pages 407-417]

M

  • Markov processes Degree–based topological indices of a general random chain [Volume 11, Issue 3, 2026, Pages 897-909]
  • Mathematical programming Optimization problems with nonconvex multiobjective generalized Nash equilibrium problem constraints [Volume 11, Issue 1, 2026, Pages 93-116]
  • Maximal outerplanar graphs Maximal outerplanar graphs with semipaired domination number double the domination number [Volume 11, Issue 1, 2026, Pages 1-20]
  • Mersenne and Fermat numbers On norms, spread, characteristic polynomial and determinant of Hankel and Toeplitz matrices with Mersenne sequence [Volume 11, Issue 3, 2026, Pages 941-958]
  • Monophonic pebbling number The monophonic pebbling number of neural networks with generalized algorithm and their applications [Volume 11, Issue 3, 2026, Pages 827-842]
  • Mostar Index Sharp bounds on additively weighted Mostar index of cacti [Volume 11, Issue 1, 2026, Pages 117-130]
  • Mostar Index On the inverse problem of some bond additive indices [Volume 11, Issue 2, 2026, Pages 433-447]
  • Multiobjective programming Two techniques to reduce the Pareto optimal solutions in multiobjective optimization problems [Volume 11, Issue 1, 2026, Pages 171-188]
  • Mycielskian graphs The Sombor index and multiplicative Sombor index of some products of graphs [Volume 11, Issue 3, 2026, Pages 787-826]

N

  • Network A traffic-based model to the $p$-median problem in congested networks [Volume 11, Issue 2, 2026, Pages 335-361]
  • Neutrosophic labeling graph Edge graceful labeling on neutrosophic graphs [Volume 11, Issue 3, 2026, Pages 871-895]
  • Nondominated Two techniques to reduce the Pareto optimal solutions in multiobjective optimization problems [Volume 11, Issue 1, 2026, Pages 171-188]
  • NP-completeness Algorithmic Results on Independent Roman {2}-Domination [Volume 11, Issue 2, 2026, Pages 599-627]

O

  • Oriented cycle On subdivisions of oriented cycles in Hamiltonian digraphs with small chromatic number [Volume 11, Issue 2, 2026, Pages 307-314]

P

  • Paired-domination Maximal outerplanar graphs with semipaired domination number double the domination number [Volume 11, Issue 1, 2026, Pages 1-20]
  • Pareto Two techniques to reduce the Pareto optimal solutions in multiobjective optimization problems [Volume 11, Issue 1, 2026, Pages 171-188]
  • Power hypergraphs Hypergraphs defined on algebraic structures [Volume 11, Issue 1, 2026, Pages 131-144]
  • Proper interval graph Algorithmic Results on Independent Roman {2}-Domination [Volume 11, Issue 2, 2026, Pages 599-627]

R

  • Randić matrix A complete characterization of spectra of the Randić matrix of level-wise regular trees [Volume 11, Issue 2, 2026, Pages 539-562]
  • Random chains Degree–based topological indices of a general random chain [Volume 11, Issue 3, 2026, Pages 897-909]
  • Recursive matrices On norms, spread, characteristic polynomial and determinant of Hankel and Toeplitz matrices with Mersenne sequence [Volume 11, Issue 3, 2026, Pages 941-958]
  • Riemann- Liouville fractional integral On Hermite-Hadamard Type Inequalities in Stochastic Fractional Calculus [Volume 11, Issue 3, 2026, Pages 1059-1071]
  • Roman domination Roman domination value in graphs [Volume 11, Issue 3, 2026, Pages 1033-1046]
  • Roman domination, double Roman domination Mixed double Roman domination in graphs [Volume 11, Issue 2, 2026, Pages 503-519]
  • Roman domination number The minimum Zagreb indices for unicyclic graphs with fixed Roman domination number [Volume 11, Issue 3, 2026, Pages 959-973]
  • Roman domination value Roman domination value in graphs [Volume 11, Issue 3, 2026, Pages 1033-1046]

S

  • Seidel energy (of graph), Seidel matrix Seidel energy of a graph with self-loops [Volume 11, Issue 3, 2026, Pages 757-766]
  • Semipaired domination number Maximal outerplanar graphs with semipaired domination number double the domination number [Volume 11, Issue 1, 2026, Pages 1-20]
  • Signed graph On the $A_{lpha}$-spectrum of the $k$-splitting signed graph and neighbourhood coronas [Volume 11, Issue 1, 2026, Pages 155-169]
  • Signed graph Unbalanced complete bipartite signed graphs ${K_{m, n}}^{sigma}$ having $m$ and $n$ as Laplacian eigenvalues with maximum multiplicities [Volume 11, Issue 2, 2026, Pages 629-642]
  • Signed line graph A construction of cospectral signed line graphs [Volume 11, Issue 3, 2026, Pages 985-993]
  • Signless Laplacian matrix On Connected Graphs with Integer-Valued Q-Spectral Radius [Volume 11, Issue 3, 2026, Pages 767-786]
  • Silicate Edge metric dimension of silicate networks [Volume 11, Issue 1, 2026, Pages 287-296]
  • Sombor index A note on graphs with integer Sombor index [Volume 11, Issue 1, 2026, Pages 205-209]
  • Sombor index Extremal trees for the general Sombor index [Volume 11, Issue 3, 2026, Pages 911-922]
  • Sombor index The Sombor index and multiplicative Sombor index of some products of graphs [Volume 11, Issue 3, 2026, Pages 787-826]
  • Spectra On cozero divisor graphs of ring $Z_n$ [Volume 11, Issue 1, 2026, Pages 227-245]
  • Spectrum On the energy of the line graph of unitary Cayley graphs [Volume 11, Issue 1, 2026, Pages 297-306]
  • Spectrum On the Metric Dimension and Spectrum of Graphs [Volume 11, Issue 2, 2026, Pages 581-598]
  • Stochastic calculus On Hermite-Hadamard Type Inequalities in Stochastic Fractional Calculus [Volume 11, Issue 3, 2026, Pages 1059-1071]
  • Strong global distribution center Strong global distribution center of graphs [Volume 11, Issue 3, 2026, Pages 1047-1057]
  • Subdivision On subdivisions of oriented cycles in Hamiltonian digraphs with small chromatic number [Volume 11, Issue 2, 2026, Pages 307-314]
  • Sum-free sets Additive closedness in subsets of $mathbb{Z}_n$ [Volume 11, Issue 2, 2026, Pages 487-501]

T

  • Terwilliger algebra Algorithm for describing the Terwilliger and quantum adjacency algebras of a distance-regular graph [Volume 11, Issue 3, 2026, Pages 975-984]
  • Tetrahedron Edge metric dimension of silicate networks [Volume 11, Issue 1, 2026, Pages 287-296]
  • Topological indices Degree–based topological indices of a general random chain [Volume 11, Issue 3, 2026, Pages 897-909]
  • Traffic congestion A traffic-based model to the $p$-median problem in congested networks [Volume 11, Issue 2, 2026, Pages 335-361]
  • Tricyclic Graph On the inverse problem of some bond additive indices [Volume 11, Issue 2, 2026, Pages 433-447]
  • Twins Edge metric dimension of silicate networks [Volume 11, Issue 1, 2026, Pages 287-296]

U

  • Unicyclic graphs The minimum Zagreb indices for unicyclic graphs with fixed Roman domination number [Volume 11, Issue 3, 2026, Pages 959-973]
  • Unitary Cayley graph On the energy of the line graph of unitary Cayley graphs [Volume 11, Issue 1, 2026, Pages 297-306]

W

Z

  • Zagreb indices The minimum Zagreb indices for unicyclic graphs with fixed Roman domination number [Volume 11, Issue 3, 2026, Pages 959-973]