The problem of several indentors moving on a viscoelastic half-plane,
is considered in the noninertial approximation. The solution of this m
ixed boundary value problem is formulated in terms of a coupled system
of integral equations in space and time. These are solved numerically
in the steady-state limit for the case of two indentors. The phenomen
a of hysteretic friction and interaction between the two indentors are
explored.