ATSF 2026 – 9th Series

The main topics (but not limited to):

• Approximation Theory: Classical approximation, statistical approximation, fuzzy approximation, approximation in the complex plane, best approximation, linear and nonlinear approximation, multivariate approximation, neural networks, numerical approximation, rational approximation, splines, interpolation, and their applications.
• Summability Theory: Statistical convergence, regular summability methods, power series methods, sequence spaces, divergent series, Tauberian theorems, summation processes, matrix and integral methods for summability, and their applications.
• Applied Mathematics: ODEs, PDEs, difference equations, mathematical modeling, dynamical systems, numerical analysis, oscillation, stability theory, control theory, financial mathematics, optimization, probability and statistics, stochastic process, graph theory, and their applications.
• Special Functions: Orthogonal polynomials, hypergeometric series, generating functions, general orthogonal systems, umbral calculus, recurrence relations, matrix-valued polynomials, Fourier series, special orthogonal functions, special polynomials, special functions in mathematical physics, and their applications.
• Analysis and Functions Theory: Harmonic analysis, functional analysis, geometric function theory, fuzzy analysis, operator theory, spectral theory, fixed point theory, fractional calculus, q-analysis, number theory, combinatorics, cryptography and coding theory, inequalities, time scales, and their applications.