<正> Let B be a Banach space, {T_(s,t), 0≤s≤t≤∞} be a two-parameter contraction semigroup on B, and {R_(λ,s),λ>0, s≥0} be the right resolvent. Definition
<正> In this paper, a new method is developed to solve the N-S equations with vorticity-velocity variables, which is suitable for describing the flow-field of t