A note on the Hoffman-Wielandt theorem

Elsner L (1993)
Linear algebra and its applications 182: 235-237.

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Journal Article | Published | English
Abstract
An elementary proof of a recent generalization of the Hoffman-Wielandt theorem to commuting m-tuples of normal matrices by Bhatia and Bhattacharyya is given. In the case m = 1 this provides a derivation, which, though using the same tools, avoids some unnecessary calculations and is thus shorter than the original one and that to be found in the standard literature.
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Elsner L. A note on the Hoffman-Wielandt theorem. Linear algebra and its applications. 1993;182:235-237.
Elsner, L. (1993). A note on the Hoffman-Wielandt theorem. Linear algebra and its applications, 182, 235-237.
Elsner, L. (1993). A note on the Hoffman-Wielandt theorem. Linear algebra and its applications 182, 235-237.
Elsner, L., 1993. A note on the Hoffman-Wielandt theorem. Linear algebra and its applications, 182, p 235-237.
L. Elsner, “A note on the Hoffman-Wielandt theorem”, Linear algebra and its applications, vol. 182, 1993, pp. 235-237.
Elsner, L.: A note on the Hoffman-Wielandt theorem. Linear algebra and its applications. 182, 235-237 (1993).
Elsner, Ludwig. “A note on the Hoffman-Wielandt theorem”. Linear algebra and its applications 182 (1993): 235-237.
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