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Formula for the differentiation of operator-valued functions depending on a parameter
V. I. Burenkov Moscow Institute of Radio Engineering, Electronics, and Automation
Abstract:
A study of the convergence of the differentiation formula
$$
(f(A))'=f'(A)A'+\frac{f''(A)}{2!}[A'A]+\frac{f'''(A)}{3!}[[A'A]A]+\dots,
$$
where $[XY]=XY-YX$, and $A=A(t)$ is a function of the real variable $t$ with values
in a Banach algebra.
Received: 06.06.1970
Citation:
V. I. Burenkov, “Formula for the differentiation of operator-valued functions depending on a parameter”, Mat. Zametki, 10:2 (1971), 207–218; Math. Notes, 10:2 (1971), 546–552
Linking options:
https://www.mathnet.ru/eng/mzm9705 https://www.mathnet.ru/eng/mzm/v10/i2/p207
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Abstract page: | 176 | Full-text PDF : | 79 | First page: | 1 |
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