The existence and uniqueness theorem of the screw tensor for the finite displacement of a rigidbody is proposed and then proved using the screw calculus. As a c
On the basis of a self-similar solution as well as of the assumption of the“TransverseMotion”.a general linear theory on hypersonic flow over a general slende
In this paper,we give necessary and sufficient conditions for absolute stability of several classes of direct control systems,and discuss the absolute stability
In this paper,we apply fixed pansystems theorems to study when a fuzzytransformation has a nonzero eigen-fuzzy set.Many necessary conditions and sufficientcondi
In recent years,a lot of writers have used Cagniard-de,Hoop’s method to solvesome problems of elastic wave But it is a difficult and complicated lask to change