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On the eigenvalues of matrices with given upper triangular part

✍ Scribed by J. A. Ball; I. Gohberg; L. Rodman; T. Shalom

Publisher
SP Birkhäuser Verlag Basel
Year
1990
Tongue
English
Weight
444 KB
Volume
13
Category
Article
ISSN
0378-620X

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On the jordan form of completions of par
On the jordan form of completions of partial upper triangular matrices
✍ C. Jordán; J.R. Torregrosa; A. Urbano 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 520 KB

two completion conjectures for partial upper triangular matrices. In this paper we show that one of them is not true in general, and we prove its validity for some particular cases. We also prove the equivalence between the two conjectures in the case of partial Hessenherg matrices.