COVID-19 pandemic and chaos theory. - Octavian Postavaru; Stefan R. Anton; Antonela Toma (Math. Comput. Simul., 2021)

Symmetries for Nonconservative Field Theories on Time Scale. - Octavian Postavaru; Antonela Toma (Symmetry, 2021)

A numerical approach based on fractional-order hybrid functions of block-pulse and Bernoulli polynomials for numerical solutions of fractional optimal control problems. - Octavian Postavaru; Antonela Toma (Math. Comput. Simul., 2022)

An efficient numerical method based on Fibonacci polynomials to solve fractional differential equations. - Octavian Postavaru (Math. Comput. Simul., 2023)

Generalized fractional-order hybrid of block-pulse functions and Bernoulli polynomials approach for solving fractional delay differential equations. - Octavian Postavaru (Soft Comput., 2023)

Hamilton-Pfaff type PDEs through multi-dimensional fractional optimization problems. - Octavian Postavaru; Antonela Toma; Savin Treanta (Commun. Nonlinear Sci. Numer. Simul., 2025)

A fractional hybrid function composed of block-pulses and fractional Fibonacci polynomials for solving multiterm fractional variable-order differential equations. - Octavian Postavaru; Antonela Toma (Comput. Appl. Math., 2025)