摘要
设X是 Hausdorff拓扑空间,m是其 Borel域 B(X)上的有限测度.{T_t}t≥0。是 L~p(X;m)(p>1)上的次马氏半群.F_(r,p)。是由该半群生成的Sobolev空间.Cap_(r,p)(r> 0;p>1)是相应的容度,本文在一定条件下证明了对任意F_(r,p)共轭空间F_(r,p)~*中的正泛函■, 存在X上唯一的σ-有限测度μ■,使得_(F(r,p))〈u,■〉_(F(r,p)*)=∫_x~u(x)μ■(dx),u∈F_(r,p), 并且对任意B∈B(X)Cap^(r,p)(B)=0的充要条件是μ■(B)=0,■∈F_(r,p)~*。
Let X be a Hausdorff topological space and m be the finite measure on its Borel σ-field B(X). Let {Tt}t≥0 be the sub-Markov semigroup on L^P(X, m) (p > 1) and F_(r,p). be the Sobolev space generated by {Tt}t≥0 Let Cap_(r,p).(.) (r > 0,p > 1) be the capacity associated with {Tt}t≥0 With some conditions we prove that for any positive functional on F_(r.p)~* the dual space of F_(r,p)., there exists an unique measure μ■ on B(X) satisfying Furthermore for any B ∈ B(X), Cap(r,p).(B) = 0 if and only if μ■(B) = 0, ■∈F_(r,p)~8.
出处
《系统科学与数学》
CSCD
北大核心
2000年第2期160-165,共6页
Journal of Systems Science and Mathematical Sciences
基金
国家自然科学基金
国家青年基金