Unconditionally stable, linearised IMEX schemes for incompressible flows with variable densityNicolás Espinoza-Contreras, Gabriel R. Barrenechea, Ernesto Castillo and Douglas R. Q. PachecoESAIM: M2AN, 59 5 (2025) 2739-2761DOI: https://doi.org/10.1051/m2an/2025071