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INTERFERENCE CANCELLATION SYSTEM by Saad

A Generalization of Saad ' s Theorem

Let (; x) be an eigenpair of the Hermitian matrix A of order n and let (; u) be a Ritz pair from a subspace K of C 2. Saad has given a simple inequality bounding sin \(x; u) in terms of sin \(x; K). In this note we show that this inequality can be extended to an equally simple inequality for eigenspaces of non-Hermitian matrices. ABSTRACT Let (; x) be an eigenpair of the Hermitian matrix A of o...

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We thank Dr Schachner for his interest and comments on our recent experimental findings [1]. The first facet of our study was that although initially (at 1 month), neointima formation in vein grafts was inhibited by perivenous application of fibrin glue at the time of implantation, at 4 months neointimal formation was not significantly different from controls [1]. Dr Schachner has implied that ...