منابع مشابه
A Remark on Matrix Rigidity
The rigidity of a matrix is deened to be the number of entries in the matrix that have to be changed in order to reduce its rank below a certain value. Using a simple combinatorial lemma, we show that one must alter at least c n 2 r log n r entries of an n n-Cauchy matrix to reduce its rank below r, for some constant c. In the second part of the paper we apply our combinatorial lemma to matrice...
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ژورنال
عنوان ژورنال: Theoretical and Mathematical Physics
سال: 2000
ISSN: 0040-5779,1573-9333
DOI: 10.1007/bf02551400