Intelligent tutorial system based on personalized system of instruction to teach or remind mathematical concepts. - Rui C. Paiva; Milton Ferreira; M. M. Frade (J. Comput. Assist. Learn., 2017)

Orthogonal Gyrodecompositions of Real Inner Product Gyrogroups. - Milton Ferreira; Teerapong Suksumran (Symmetry, 2020)

Time-fractional telegraph equation of distributed order in higher dimensions. - Nelson Vieira; Maria Manuela Fernandes Rodrigues; Milton Ferreira (Commun. Nonlinear Sci. Numer. Simul., 2021)

Time-fractional diffusion equation with $$ psi $$-Hilfer derivative. - Nelson Vieira; Maria Manuela Fernandes Rodrigues; Milton Ferreira (Comput. Appl. Math., 2022)

Hyperbolic linear canonical transforms of quaternion signals and uncertainty. - João Morais; Milton Ferreira (Appl. Math. Comput., 2023)