On complete-cocomplete subspaces of an inner product space
نویسندگان
چکیده
منابع مشابه
On the (non)existence of States on Orthogonally Closed Subspaces in an Inner Product Space
Suppose that S is an incomplete inner product space. In [2] A. Dvurečenskij shows that there are no finitely additive states on orthogonally closed subspaces, F (S), of S that are regular with respect to finitely dimensional spaces. In this note we show that the most important special case of the former result—the case of the evaluations given by vectors in the “Gleason manner”—allows for a rel...
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For n n complex matrices A and an n n Hermitian matrix S, we consider the S-numerical range of A and the positive S-numerical range of A de ned by WS(A) = hAv; viS hv; viS : v 2 I Cn; hv; viS 6= 0
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For n n complex matrices A and an n n Hermitian matrix S, we consider the S-numerical range of A and the positive S-numerical range of A de ned by WS(A) = hAv; viS hv; viS : v 2 I Cn; hv; viS 6= 0
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ژورنال
عنوان ژورنال: Applications of Mathematics
سال: 2005
ISSN: 0862-7940,1572-9109
DOI: 10.1007/s10492-005-0007-1