Signorini problem
= Signorini problem
{wiki=Signorini_problem}
The Signorini problem is a type of mathematical problem in the field of elasticity and optimal control, particularly related to contact mechanics. It models the interaction between elastic bodies and their contact with surfaces, especially under conditions where friction is involved. Specifically, the Signorini problem describes the behavior of a deformable body when it is in contact with a rigid foundation or another body.