A high resolution spatially adaptive vortex method for separating flows. Part I: Two-dimensional domains. - Issam Lakkis; Ahmed F. Ghoniem (J. Comput. Phys., 2009)

Green's function of the screened Poisson's equation on the sphere. - Ramy Tanios; Samah El Mohtar; Omar M. Knio; Issam Lakkis (CoRR, 2019)

Proper evaluation of spherical harmonics-based expressions for the velocity and vortex stretching vectors in three-dimensional grid-free vortex methods. - Samer Salloum; Issam Lakkis (J. Comput. Phys., 2020)

An adaptive error-controlled hybrid fast solver for regularized vortex methods. - Samer Salloum; Issam Lakkis (J. Comput. Phys., 2022)