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Invertibility of sub-matrices and the octahedron width theorem

✍ Scribed by E. Gluskin; A. Olevskii

Book ID
107529467
Publisher
The Hebrew University Magnes Press
Year
2011
Tongue
English
Weight
156 KB
Volume
186
Category
Article
ISSN
0021-2172

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On the invertibility of “rectangular” bi
On the invertibility of “rectangular” bi-infinite matrices and applications in time–frequency analysis
✍ Götz E. Pfander 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 252 KB

Finite dimensional matrices with more columns than rows have no left inverses while those with more rows than columns have no right inverses. We give generalizations of these simple facts to bi-infinite matrices. Our results are then used to obtain density results for p-frames of time-frequency mole