Completion of operator partial matrices to projections
نویسندگان
چکیده
منابع مشابه
Ela Tpk Completion of Partial Matrices with One Unspecified Entry
Abstract. Every partial TP2 (TP1) matrix with one unspecified entry has a TP2 (TP1) completion. For a given m-by-n pattern with one unspecified entry, the minimum set of conditions characterizing TP3 completability is given. These conditions are at most eight polynomial inequalities on the specified entries of the pattern. For k ≥ 3, patterns with one unspecified entry that are TPk completable ...
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Posets with (I;)-indexed projections are triples (D; ; (p i) i2I). They consist of a partially ordered set (D;) and a monotone net (p i) i2I of projections on D with a xed directed index set (I;). In this paper we prove that there is a unique \completion" (b D; b ; (b p i) i2I) of (D; ; (p i) i2I). It is complete with respect to the uniformity induced by the kernels of all b p i. Moreover, it s...
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ژورنال
عنوان ژورنال: Linear Algebra and its Applications
سال: 1996
ISSN: 0024-3795
DOI: 10.1016/0024-3795(94)00336-x