Inequalities related to stationary flows of granulated media
Grzegorz Łukaszewicz, Adam Piskorek · Mathematical Methods in the Applied Sciences · 1989
Abstract We investigate some variational inequalities associated with the equations of the stationary motion of granulated media with a constant density. These inequalities replace the usual equations of motion in the case when some additional constraints are imposed on the flow. We prove the existence of solutions of the inequalities, study their regularity, uniqueness, dependence on data and relations to solutions of the equations of motion.