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Diagonals and numerical ranges of direct sums of matrices

โœ Scribed by Lee, Hsin-Yi

Book ID
122621833
Publisher
Elsevier Science
Year
2013
Tongue
English
Weight
394 KB
Volume
439
Category
Article
ISSN
0024-3795

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A Banach algebraic approach is proposed to study the asymptotic bchaviour of the numerical ranges of certain (finite) approximation matrices of {infinite) operators. The approach works for large classes of approximation methods; it is examined in detail here for the finite sections of Toeplitz opera