主题词：Differential Equations and Boundary Problems; Advanced Harmonic Analysis Research; Differential Equations and Numerical Methods; Spectral Theory in Mathematical Physics; Advanced Mathematical Modeling in Engineering; Numerical methods in inverse problems; Holomorphic and Operator Theory; Mathematical Analysis and Transform Methods; Fixed Point Theorems Analysis; Approximation Theory and Sequence Spaces; Nonlinear Differential Equations Analysis; Nonlinear Partial Differential Equations; advanced mathematical theories; Advanced Banach Space Theory; Algebraic and Geometric Analysis; Advanced Mathematical Physics Problems; Matrix Theory and Algorithms; Fractional Differential Equations Solutions; Mathematical functions and polynomials; Fuzzy and Soft Set Theory; Optimization and Variational Analysis; Stability and Controllability of Differential Equations; Advanced Algebra and Logic; Advanced Differential Equations and Dynamical Systems; Mathematical Approximation and Integration