Keyword Index

A

  • Adaptive dynamic programming Dynamic adaptation strategies for optimal control in unknown linear time-invariant system [Volume 14, Issue 1, 2026, Pages 1-17]
  • Adjacency eigenvalue Advanced bounds for eigenvalues in spectral fuzzy graph theory [Volume 14, Issue 1, 2026, Pages 137-160]
  • Advection-dispersion equation The method based on quintic B-spline functions for addressing time-fractional advection-dispersion equations [Volume 14, Issue 2, 2026, Pages 533-556]
  • Agricultural residue management Optimal control of a bioeconomic crop-energy system with energy reinvestment [Volume 14, Issue 1, 2026, Pages 327-346]
  • Air ‎pollution A theoretical study for air pollution model as‎ a free boundary ‎problem‎ [Volume 14, Issue 1, 2026, Pages 115-135]
  • Approximate conservation Improved lower bound of spatial analyticity radius for solutions to nonlinear wave equation [Volume 14, Issue 1, 2026, Pages 347-361]
  • Artery Blood flow through a stenosed artery under MHD two-phase conditions with Hall effect, radiation and diffusion [Volume 14, Issue 2, 2026, Pages 579-594]
  • Asymptomatic Infection Dynamical analysis of novel minimal SEIR model incorporating asymptomatic transmission [Volume 14, Issue 2, 2026, Pages 741-760]
  • Atangana-Baleanu fractal–fractional operator Modeling and analysis of deforestation and pollution dynamics induced by industrialization using the fractal-fractional Atangana-Baleanu derivative [Volume 14, Issue 2, 2026, Pages 407-430]

B

  • Banach space Boundary value problems for singular iterative dynamic equations on time scales [Volume 14, Issue 1, 2026, Pages 57-74]
  • Bayesian Regularization Neural Network Dual analysis of myocardial infarction using fractional mathematical modeling and machine learning [Volume 14, Issue 2, 2026, Pages 699-722]
  • Bioeconomic modeling Optimal control of a bioeconomic crop-energy system with energy reinvestment [Volume 14, Issue 1, 2026, Pages 327-346]
  • Blood flow Blood flow through a stenosed artery under MHD two-phase conditions with Hall effect, radiation and diffusion [Volume 14, Issue 2, 2026, Pages 579-594]
  • Boundary Samples Enhancing support vector machine performance through boundary-focused covariance matrix learning [Volume 14, Issue 1, 2026, Pages 285-304]
  • Burgers equation Numerical solution of the time fractional nonlinear burgers equation using the quintic B-Spline method [Volume 14, Issue 1, 2026, Pages 253-271]
  • BVP Boundary value problems for singular iterative dynamic equations on time scales [Volume 14, Issue 1, 2026, Pages 57-74]

C

  • Caputo derivative An accurate computational approach for solving system of differential equations involving non-local derivatives [Volume 14, Issue 1, 2026, Pages 19-34]
  • Caputo derivative Dual analysis of myocardial infarction using fractional mathematical modeling and machine learning [Volume 14, Issue 2, 2026, Pages 699-722]
  • Caputo fractional derivative The method based on quintic B-spline functions for addressing time-fractional advection-dispersion equations [Volume 14, Issue 2, 2026, Pages 533-556]
  • Caputo time-fractional derivative Numerical solution of the time fractional nonlinear burgers equation using the quintic B-Spline method [Volume 14, Issue 1, 2026, Pages 253-271]
  • Cauchy problem Spline-interpolation solution of Cauchy problem for a harmonic function in a simply connected 3D domain [Volume 14, Issue 1, 2026, Pages 315-325]
  • Celis-Dennis-Tapia problem A fast and cheap approach for strengthening Lagrangian bound for the generalized Celis-Dennis-Tapia subproblem [Volume 14, Issue 2, 2026, Pages 595-608]
  • Cloud interval A predictor based method for signal detection in time series case study: financial markets of Iran in COVID-19 outbreak [Volume 14, Issue 1, 2026, Pages 93-114]
  • Collaborative robots Convex optimization approach for the path-following problem of two collaborative robots [Volume 14, Issue 2, 2026, Pages 471-487]
  • Combined Oral Contraceptive Pill Dual analysis of myocardial infarction using fractional mathematical modeling and machine learning [Volume 14, Issue 2, 2026, Pages 699-722]
  • Composite Materials Boundary value problems for singular iterative dynamic equations on time scales [Volume 14, Issue 1, 2026, Pages 57-74]
  • Constrained Multi-objective Optimization Problems An accelerated method for solving constrained multi-objective optimization [Volume 14, Issue 2, 2026, Pages 509-532]
  • Control Convex optimization approach for the path-following problem of two collaborative robots [Volume 14, Issue 2, 2026, Pages 471-487]
  • Control‎ Design of an optimal learning sliding mode control for linear systems [Volume 14, Issue 1, 2026, Pages 191-206]
  • Convex problem Convex optimization approach for the path-following problem of two collaborative robots [Volume 14, Issue 2, 2026, Pages 471-487]
  • Covariance Matrix Enhancing support vector machine performance through boundary-focused covariance matrix learning [Volume 14, Issue 1, 2026, Pages 285-304]
  • COVID-19 simulation Dynamical analysis of novel minimal SEIR model incorporating asymptomatic transmission [Volume 14, Issue 2, 2026, Pages 741-760]

D

  • Data envelopment analysis p-robust network cost efficiency with genetic algorithms and machine learning [Volume 14, Issue 1, 2026, Pages 231-251]
  • Decay rate for the radius Improved lower bound of spatial analyticity radius for solutions to nonlinear wave equation [Volume 14, Issue 1, 2026, Pages 347-361]
  • Drone delivery problem Mathematical model and hybrid meta-heuristic solution approaches for hub location problem with hybrid drone-airplane delivery mode [Volume 14, Issue 2, 2026, Pages 609-646]

E

  • Eigenvector Enhancing support vector machine performance through boundary-focused covariance matrix learning [Volume 14, Issue 1, 2026, Pages 285-304]
  • Energy bounds Advanced bounds for eigenvalues in spectral fuzzy graph theory [Volume 14, Issue 1, 2026, Pages 137-160]
  • Energy-soil feedback Optimal control of a bioeconomic crop-energy system with energy reinvestment [Volume 14, Issue 1, 2026, Pages 327-346]
  • Epidemic model Full and partial controllability of the Kermack-Mckendrick system with time- varying incidence rates [Volume 14, Issue 2, 2026, Pages 673-697]
  • Existence criteria Boundary value problems for singular iterative dynamic equations on time scales [Volume 14, Issue 1, 2026, Pages 57-74]
  • Expected cost efficiency p-robust network cost efficiency with genetic algorithms and machine learning [Volume 14, Issue 1, 2026, Pages 231-251]
  • Exploration noise Dynamic adaptation strategies for optimal control in unknown linear time-invariant system [Volume 14, Issue 1, 2026, Pages 1-17]

F

  • Feasible Direction Methods An accelerated method for solving constrained multi-objective optimization [Volume 14, Issue 2, 2026, Pages 509-532]
  • Fractional Mathematical Modeling Dual analysis of myocardial infarction using fractional mathematical modeling and machine learning [Volume 14, Issue 2, 2026, Pages 699-722]
  • Fractional pantograph differential equations Mittag-Leffler wavelet-based numerical method for fractional pantograph delay differential equations [Volume 14, Issue 2, 2026, Pages 489-508]
  • Fractional partial differential equation Novel Legendre-Jaiswal functions for solving time-space fractional partial differential equations [Volume 14, Issue 2, 2026, Pages 761-786]
  • Fredholm integral equations Numerical solution of Fredholm integral equations by the least squares method using QR decomposition [Volume 14, Issue 1, 2026, Pages 273-284]
  • Full Control Full and partial controllability of the Kermack-Mckendrick system with time- varying incidence rates [Volume 14, Issue 2, 2026, Pages 673-697]
  • Fuzzy graph Advanced bounds for eigenvalues in spectral fuzzy graph theory [Volume 14, Issue 1, 2026, Pages 137-160]

G

  • Gauss quadrature rule Numerical solution of Fredholm integral equations by the least squares method using QR decomposition [Volume 14, Issue 1, 2026, Pages 273-284]
  • Gradient projection method A gradient projection method for solving nonlinear optimal control problems with time-varying delays [Volume 14, Issue 2, 2026, Pages 363-378]

H

  • Heat-Mass transfer Blood flow through a stenosed artery under MHD two-phase conditions with Hall effect, radiation and diffusion [Volume 14, Issue 2, 2026, Pages 579-594]
  • Hub location problem Mathematical model and hybrid meta-heuristic solution approaches for hub location problem with hybrid drone-airplane delivery mode [Volume 14, Issue 2, 2026, Pages 609-646]
  • Hybrid meta-heuristic algorithm Mathematical model and hybrid meta-heuristic solution approaches for hub location problem with hybrid drone-airplane delivery mode [Volume 14, Issue 2, 2026, Pages 609-646]
  • Hybrid Method Full and partial controllability of the Kermack-Mckendrick system with time- varying incidence rates [Volume 14, Issue 2, 2026, Pages 673-697]

I

  • Implied volatility‎ Enhancing implied volatility forecasting: multi-model approaches for the S&P500 index [Volume 14, Issue 1, 2026, Pages 75-91]

J

  • Jaiswal polynomial Novel Legendre-Jaiswal functions for solving time-space fractional partial differential equations [Volume 14, Issue 2, 2026, Pages 761-786]

K

  • Kalman filter Modeling log-volatility with zero returns: empirical evidence for asymmetric SV and log-GARCH models [Volume 14, Issue 2, 2026, Pages 787-801]

L

  • L1 scheme An accurate computational approach for solving system of differential equations involving non-local derivatives [Volume 14, Issue 1, 2026, Pages 19-34]
  • Laplacian eigenvalue Advanced bounds for eigenvalues in spectral fuzzy graph theory [Volume 14, Issue 1, 2026, Pages 137-160]
  • Least squares method Numerical solution of Fredholm integral equations by the least squares method using QR decomposition [Volume 14, Issue 1, 2026, Pages 273-284]
  • Legendre polynomial Novel Legendre-Jaiswal functions for solving time-space fractional partial differential equations [Volume 14, Issue 2, 2026, Pages 761-786]
  • Line-Search Techniques An accelerated method for solving constrained multi-objective optimization [Volume 14, Issue 2, 2026, Pages 509-532]
  • Lorentz force Blood flow through a stenosed artery under MHD two-phase conditions with Hall effect, radiation and diffusion [Volume 14, Issue 2, 2026, Pages 579-594]

M

  • Mathematical modeling Convex optimization approach for the path-following problem of two collaborative robots [Volume 14, Issue 2, 2026, Pages 471-487]
  • Matrix factorization‎ A ‎robust ‎‎unsupervised ‎‎feature ‎s‎election based on ‎‎subspace ‎l‎earning and ‎‎adaptive ‎‎graph ‎‎structure [Volume 14, Issue 1, 2026, Pages 207-230]
  • Merger‎ New non-radial models for merger and acquisition to achieve strong efficiency and MPSS without changing in the efficient frontier [Volume 14, Issue 1, 2026, Pages 35-55]
  • Meta-heuristic algorithm Mathematical model and hybrid meta-heuristic solution approaches for hub location problem with hybrid drone-airplane delivery mode [Volume 14, Issue 2, 2026, Pages 609-646]
  • Mittag-Leffler wavelets Mittag-Leffler wavelet-based numerical method for fractional pantograph delay differential equations [Volume 14, Issue 2, 2026, Pages 489-508]
  • Mixed fractional Brownian motion‎ Numerical pricing of American options under a nonlinear Black-Scholes framework with mixed fractional Brownian motion [Volume 14, Issue 2, 2026, Pages 557-577]
  • Modified $SEIR$ Model Dynamical analysis of novel minimal SEIR model incorporating asymptomatic transmission [Volume 14, Issue 2, 2026, Pages 741-760]
  • Modified Gevrey space Improved lower bound of spatial analyticity radius for solutions to nonlinear wave equation [Volume 14, Issue 1, 2026, Pages 347-361]
  • Moratorium period Two-stage multi-objective technology portfolio planning under resource constraints (case study: Iranian technology development fund) [Volume 14, Issue 2, 2026, Pages 645-671]
  • Myocardial Infarction Dual analysis of myocardial infarction using fractional mathematical modeling and machine learning [Volume 14, Issue 2, 2026, Pages 699-722]

N

  • Nonliear wave equation Improved lower bound of spatial analyticity radius for solutions to nonlinear wave equation [Volume 14, Issue 1, 2026, Pages 347-361]
  • Nonlinear optimal control problems A gradient projection method for solving nonlinear optimal control problems with time-varying delays [Volume 14, Issue 2, 2026, Pages 363-378]
  • Nonlinear singularly perturbed problems A robust fitted finite difference method for semi-linear two-parameter singularly perturbed PDEs [Volume 14, Issue 2, 2026, Pages 379-405]

O

  • Optimization Convex optimization approach for the path-following problem of two collaborative robots [Volume 14, Issue 2, 2026, Pages 471-487]

P

  • Pareto Critical Point An accelerated method for solving constrained multi-objective optimization [Volume 14, Issue 2, 2026, Pages 509-532]
  • Partial Control Full and partial controllability of the Kermack-Mckendrick system with time- varying incidence rates [Volume 14, Issue 2, 2026, Pages 673-697]
  • Policy iteration Dynamic adaptation strategies for optimal control in unknown linear time-invariant system [Volume 14, Issue 1, 2026, Pages 1-17]
  • Pontryagin Maximum Principle Optimal control of a bioeconomic crop-energy system with energy reinvestment [Volume 14, Issue 1, 2026, Pages 327-346]
  • Predation cooperation Hunting cooperation in prey-predator models: spatiotemporal patterns and bifurcation analysis with holling type IV response [Volume 14, Issue 2, 2026, Pages 431-451]

Q

  • QR decomposition Numerical solution of Fredholm integral equations by the least squares method using QR decomposition [Volume 14, Issue 1, 2026, Pages 273-284]
  • Quintic B-spline method Numerical solution of the time fractional nonlinear burgers equation using the quintic B-Spline method [Volume 14, Issue 1, 2026, Pages 253-271]

R

  • Radius of analyticity Improved lower bound of spatial analyticity radius for solutions to nonlinear wave equation [Volume 14, Issue 1, 2026, Pages 347-361]
  • Rehabilitation robot Manipulability based model predictive control of rehabilitation robot [Volume 14, Issue 1, 2026, Pages 305-313]
  • Reinforcement learning Proximal policy optimization with adaptive generalized advantage estimate: critic-aware refinements [Volume 14, Issue 1, 2026, Pages 177-190]
  • Reinvestment strategy Two-stage multi-objective technology portfolio planning under resource constraints (case study: Iranian technology development fund) [Volume 14, Issue 2, 2026, Pages 645-671]

S

  • Shishkin mesh Higher order numerical method for a class of singularly perturbed time dependent nonlinear reaction diffusion problems [Volume 14, Issue 2, 2026, Pages 453-470]
  • Singularly perturbed time dependent nonlinear reaction diffusion problems Higher order numerical method for a class of singularly perturbed time dependent nonlinear reaction diffusion problems [Volume 14, Issue 2, 2026, Pages 453-470]
  • Stability Modeling and analysis of deforestation and pollution dynamics induced by industrialization using the fractal-fractional Atangana-Baleanu derivative [Volume 14, Issue 2, 2026, Pages 407-430]
  • Stability Classification of flow behavior near generalized equilibrium points in piecewise smooth systems [Volume 14, Issue 2, 2026, Pages 723-739]
  • Stability analysis Dynamical analysis of novel minimal SEIR model incorporating asymptomatic transmission [Volume 14, Issue 2, 2026, Pages 741-760]
  • Staged financing Two-stage multi-objective technology portfolio planning under resource constraints (case study: Iranian technology development fund) [Volume 14, Issue 2, 2026, Pages 645-671]
  • Stenosis Blood flow through a stenosed artery under MHD two-phase conditions with Hall effect, radiation and diffusion [Volume 14, Issue 2, 2026, Pages 579-594]
  • Stochastic volatility Modeling log-volatility with zero returns: empirical evidence for asymmetric SV and log-GARCH models [Volume 14, Issue 2, 2026, Pages 787-801]
  • Supporting hyperplane A fast and cheap approach for strengthening Lagrangian bound for the generalized Celis-Dennis-Tapia subproblem [Volume 14, Issue 2, 2026, Pages 595-608]
  • System of differential equations An accurate computational approach for solving system of differential equations involving non-local derivatives [Volume 14, Issue 1, 2026, Pages 19-34]

T

  • Taguchi Method Mathematical model and hybrid meta-heuristic solution approaches for hub location problem with hybrid drone-airplane delivery mode [Volume 14, Issue 2, 2026, Pages 609-646]
  • Tau-collocation method Tau-collocation method for weakly singular Volterra integral equations and related special cases [Volume 14, Issue 1, 2026, Pages 161-175]
  • Technology portfolio selection Two-stage multi-objective technology portfolio planning under resource constraints (case study: Iranian technology development fund) [Volume 14, Issue 2, 2026, Pages 645-671]
  • Technology prioritization Two-stage multi-objective technology portfolio planning under resource constraints (case study: Iranian technology development fund) [Volume 14, Issue 2, 2026, Pages 645-671]
  • Time delay systems A gradient projection method for solving nonlinear optimal control problems with time-varying delays [Volume 14, Issue 2, 2026, Pages 363-378]
  • Time-varying delay A gradient projection method for solving nonlinear optimal control problems with time-varying delays [Volume 14, Issue 2, 2026, Pages 363-378]

U

  • Ulam-Hyres stability Modeling and analysis of deforestation and pollution dynamics induced by industrialization using the fractal-fractional Atangana-Baleanu derivative [Volume 14, Issue 2, 2026, Pages 407-430]

V

  • Value iteration Dynamic adaptation strategies for optimal control in unknown linear time-invariant system [Volume 14, Issue 1, 2026, Pages 1-17]
  • Varying infection rate Full and partial controllability of the Kermack-Mckendrick system with time- varying incidence rates [Volume 14, Issue 2, 2026, Pages 673-697]

W

  • Wilcoxon Test p-robust network cost efficiency with genetic algorithms and machine learning [Volume 14, Issue 1, 2026, Pages 231-251]