WEAK SOLVABILITY OF THE INITIAL-BOUNDARY-VALUE PROBLEM FOR THE NAVIER–STOKES SYSTEM BASED ON THE METHOD OF PARABOLIC REGULARIZATION
摘要
A proof of the existence of weak solutions for a system of equations describing the motion of a viscous liquid is given. A number of a priori estimates for the family of solutions are derived. Based on the topological theory of the degree of completely continuous vector fields, we establish the existence of weak solutions of the approximation problem. The convergence of solutions of approximation problems to the solution of the original boundary-value problem is proved.