Characterizations of Subnormal Matrices
نویسندگان
چکیده
منابع مشابه
Combinatorial Characterizations of K-matrices
We present a number of combinatorial characterizations of Kmatrices. This extends a theorem of Fiedler and Pták on linearalgebraic characterizations of K-matrices to the setting of oriented matroids. Our proof is elementary and simplifies the original proof substantially by exploiting the duality of oriented matroids. As an application, we show that a simple principal pivot method applied to th...
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Article history: Received 29 September 2008 Accepted 6 January 2009 Available online 14 February 2009 Submitted by R.A. Brualdi Dedicated to the memory of a great scholar and a valued friend, Professor David Gale. AMS classification: 90C20 90C33 15A39 15A63
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ژورنال
عنوان ژورنال: Linear Algebra and its Applications
سال: 1995
ISSN: 0024-3795
DOI: 10.1016/0024-3795(94)00006-9