TY - JOUR AU - Wu, Jiahong TI - Quasi-geostrophic type equations with weak initial data JO - Electronic journal of differential equations PY - 1998 VL - 1998 UR - http://geodesic.mathdoc.fr/item/EJDE_1998__1998__a10/ LA - en ID - EJDE_1998__1998__a10 ER -