ON THE BEST APPROXIMATION MATRIX PROBLEM AND MATRIX FOURIER SERIES-中国期刊网

摘要 Inthispapertheconceptofpositivedefinitebilinearmatrixmomentfunctional.actingonthespaceofallthematrixvaluedcontinuousfunctionsdefinedonaboundedinterval[a,b],isintroduced.ThebestapproximationmatrixproblemwithrespecttosuchafunctionalissolvedintermsofmatrixFourierseries.BasicpropertiesofmatrixFourierseriessuchastheKiemann-Lebesguematrixpropertyandthebessel-parsevalmatrixinequalityareproved.Theconceptoftotalsetvjithrespecttoapositivedefinitematrixfunctionalisintroduced,andthetotallityofanorthonormalsequenceofmatrixpolynomialswithrespecttothefunctional,isestablished.

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ON THE BEST APPROXIMATION MATRIX PROBLEM AND MATRIX FOURIER SERIES

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ON THE BEST APPROXIMATION MATRIX PROBLEM AND MATRIX FOURIER SERIES

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