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Theorem. A mapping x** of X* into sealar field Φ is a linear functional if and only if there exists a μ∈ba(S) such that X**(X*)=∫sx*(s)μ(ds),x*∈X* Theorem. F∈ba(S.Σ)* if and only if there exists a λ∈ba (T) (T is the closed unit sphere of the space B(S,Σ))such that F(μ)=∫(∫st(s)μ(ds))λ(dt),μ∈ba(S,Σ). 相似文献
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In this paper,we give a general characterization of a class of matrices of quasi-homogeneous operators between topological vector spaces. 相似文献
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Inthe1980s,P.AlltosikprovedanicetheoremwhichiscalledAniosik-MikusinskiBasicMatrixTheorem.ThetheoremisaresultconcerningindnitematricesandhasproventobequiteeffectiveintreatingvarioustopicsinfUnctionalanalysisandmeasuretheory[1--5]thatwerepreviouslytrea... 相似文献
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