Miyachi's Theorem for the Quaternion Fourier Transform. - Youssef El Haoui; Saïd Fahlaoui (Circuits Syst. Signal Process., 2020)

Beurling's Theorem Associated with Octonion Algebra Valued Signals. - Youssef El Haoui; Mohra Zayed (ENGAGE, 2022)

Uncertainty Principles for Wigner-Ville Distribution Associated with the Quaternion Offset Linear Canonical Transform. - Didar Urynbassarova; Youssef El Haoui; Feng Zhang 011 (Circuits Syst. Signal Process., 2023)

Quaternionic hyperbolic offset linear canonical transform. - Youssef El Haoui (J. Comput. Appl. Math., 2026)