Based on the interaction of asperities and upperbound approach a mathematical model for simulation of friction phenomenon between dies and workpiece is proposed
As is well-known in both elastic mechanics and fluid mechanics.the plane problems aremore convenienl,than space problems.One of the canses is that there has bee
In this paper we study the singularly perturbed boundary value problem:εy″=f(t,y,ε),y(0)=ξ(ε),y(1)=η(ε).where εis a positive small parameter.In the conditions:f<s
In this paper we are interested in the large time behavior of the nonlinear diffusionequationu<sub>1</sub>=(φ(u))<sub>x</sub>x+φ(u), x∈R,t∈R<sup>+</sup>=(0,+∞))We
Some authors employed the method and technique of differential inequalities to obtain fairly general results concerning the existence and asymptotic behavior, a