主题词：Fractional Differential Equations Solutions; Nonlinear Differential Equations Analysis; Mathematical and Theoretical Epidemiology and Ecology Models; Differential Equations and Numerical Methods; Advanced Optimization Algorithms Research; Matrix Theory and Algorithms; Optimization and Variational Analysis; Iterative Methods for Nonlinear Equations; Numerical methods for differential equations; Evolution and Genetic Dynamics; Advanced Numerical Methods in Computational Mathematics; Differential Equations and Boundary Problems; graph theory and CDMA systems; Coding theory and cryptography; Advanced Mathematical Modeling in Engineering; Graph theory and applications; COVID-19 epidemiological studies; Stability and Controllability of Differential Equations; Numerical methods in engineering; Multi-Criteria Decision Making; Numerical methods in inverse problems; Advanced Graph Theory Research; Sparse and Compressive Sensing Techniques; Fixed Point Theorems Analysis; Mathematical Biology Tumor Growth