polynomially相关论文
讨论Banach空间X上二阶抽象微分方程d^2/(dr^2)u(t,x)=Au(t,x);u(0,x)=x,d/(dt)u(0,x)=0,x∈X的不适定情况,这里A是X上的闭算子;引进空间Y(A,k),即使得二阶抽......
Let M be a matroid defined on a finite set E and L?⊂?E?. L is locked in M if??and ?are 2-connected, and . In this ......