It is shown that, by imposing proper differentialconstraint, the Grammian determinant type solutions of the KP hierarchy are naturally led to the PfafRan solutions of the BKP hierarchy.
证明了通过施加适当的微分约束,K p方程族的格拉姆行列式的解很自然的约化为BK p方程族的解。
2
Well, let's look at the differential — — of this constraint quantity.
来看一下这个约束量的微分。
3
In the second part, we discuss the time-optimal control problem for an ordinary differential system with a pointwise state-constraint. We give the explicit solution.