Lie symmetries and Hojman conserved quantities of one kind of differential equations of motion of nonholonomic systems
一类非完整系统运动微分方程的Lie对称性与Hojman型守恒量

The Lie symmetries and Hojman conserved quantities of one kind of differential equations of motion of nonholonomic systems are studied. The determining equations and the restriction equations of Lie symmetries of the system are obtained. The condition under which a conserved quantity exists is established and the form of the conserved quantity is given. An example is given to illustrate the application of the result.