In this paper,we consider a class of nonsmooth minimax fractional programming problems with nonlinear inequality constraints,where the numerator in the objective function is in the form of sum of differentiable function and convex function while the denominator is in the form of difference of a differentiable function and a convex function,and the constrained functions are differentiable.

Wear Behavior of Die Steel with Non-smooth Surface in Different Shape and Distance;

Research of orthogonal design on wear resistance test of non-smooth surfaces with laser treated pits;

Experiment on Reduction of Soil Adhesion Force and Sliding Resistance of Earthworm Non-smooth Surface;

The unsmoothed characteristics of living beings in soil are applied to the bionic design on wear resistant composite.

The wettability and the mechanism reducing soil adhesion of soil animals unsmooth cuticles were analyzed in theory.

Their cuticle universally exists unsmooth morphology, which can reduce resistance and enhanced wear resistance.

Duality for a class of nonsmooth multiple-objective semi-Infinte programming;

The influence of bionics nonsmooth surface configuration on friction and wear law was investigated,and the lubrication and wear experiments of nine kinds of bionics nonsmooth model plates were performed on the JF150D-Ⅱ friction testing machine.

This paper studies some of methods of calculating nonsmooth optimization problems and expends two results of E Sach arithmetic.