证明了球面上的Poisson积分算子从Lp(S(n-1))到Lorentz空间L(q,1)(B-1)(q1)有界,且从有界Borel测度集M(S(n-1))到L(q,1)(B1)(q(np)/(n-1).
The boundedness of the Poisson integral operaror on a sphere is established in this paper,that is the operator is bounded from Lp(S(n-1)) to the Lorentz space L(q,1)(B_1)(q(np)/(n-1) when p1) and bounded from M(S(n-1)) to L(q,1)(B_1)(qn/(n-1)),which extends some known results.Furthermore, a simple example is constructed to show that the Poisson integral operator isn't bounded from M(S(n-1)) to L(n/(n-1))(B_1).