Near-optimization is as sensible and important as optimization for both theory and applications. This paper concerns dynamic near-optimization, or near-optimal controls, for systems governed by ...

It is important to understand that there is no simple relationship between viscosity and particle size that covers all types of liquids. Liquid viscosity is caused by forces between its particles, ...

The dynamic evolution of an elastic medium undergoing frictional slip is considered. The Coulomb law modeling the contact uses a friction coefficient that is a non-monotone function of the slip-rate.