Title
Reconstruction of matrices from submatrices
Abstract
For an arbitrary matrix A of n x n symbols, consider its submatrices of size k x k, obtained by deleting n - k rows and n - k columns. Optionally, the deleted rows and columns can be selected symmetrically or independently. We consider the problem of whether these multisets determine matrix A. Following the ideas of Krasikov and Roditty in the reconstruction of sequences from subsequences, we replace the multiset by the sum of submatrices. For k > cn(2/3) we prove that the matrix A is determined by the sum of the k x k submatrices, both in the symmetric and in the nonsymmetric cases.
Year
DOI
Venue
2009
10.1090/S0025-5718-09-02210-8
MATHEMATICS OF COMPUTATION
Field
DocType
Volume
Row,Row and column spaces,Combinatorics,Multiset,Matrix (mathematics),Numerical analysis,Block matrix,Mathematics
Journal
78
Issue
ISSN
Citations 
267
0025-5718
0
PageRank 
References 
Authors
0.34
6
3
Name
Order
Citations
PageRank
G. Kos128719.43
Péter Ligeti251.69
Péter Sziklai3125.24