Numerical solution of fractional advection-diffusion equation with generalized Caputo derivative using shifted ultraspherical collocation method. Journal of the Nigerian Society of Physical Sciences, [S. l.], v. 8, n. 2, p. 2986, 2026. DOI: 10.46481/jnsps.2026.2986. Disponível em: https://journal.nsps.org.ng/index.php/jnsps/article/view/2986. Acesso em: 2 may. 2026.