INTRODUCTION TO FRACTIONAL PARTIAL DIFFERENTIAL EQUATIONS. INTERNATIONAL JOURNAL OF MATHEMATICS (IJMM), [S. l.], v. 2, n. 1, p. 1–11, 2023. Disponível em: https://lib-index.com/index.php/IJMM/article/view/IJMM_02_01_001.. Acesso em: 12 feb. 2026.