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Teoriya Veroyatnostei i ee Primeneniya, 1978, Volume 23, Issue 2, Pages 397–402
(Mi tvp3049)
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This article is cited in 5 scientific papers (total in 5 papers)
Short Communications
Linear and almost linear functions on a measurable Hilbert space
A. V. Skorohod Kiev
Abstract:
Let $X$ be a separable Hilbert space, $\mathfrak B$ be the Borel $\sigma$-algebra in $X$, and ($\mu$ be a probability measure on $\mathfrak B$. A function $\varphi(x)$ is called a $\mu$-measurable linear function if it is the limit in $\mu$ of a sequence of continuous linear functions. A function $\varphi(x)$ is called an almost linear function, if it is $\mathfrak B$-measurable and there exists a linear $\mathfrak B$-measurable manifold $L\subset X$ such that $\mu(L)=1$ and $\varphi(x)$ is linear on $L$.
We investigate the class of all linear functions and (in the case of quasiinvariant measure) the class of all almost linear functions.
Received: 15.02.1977
Citation:
A. V. Skorohod, “Linear and almost linear functions on a measurable Hilbert space”, Teor. Veroyatnost. i Primenen., 23:2 (1978), 397–402; Theory Probab. Appl., 23:2 (1979), 380–385
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https://www.mathnet.ru/eng/tvp3049 https://www.mathnet.ru/eng/tvp/v23/i2/p397
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