R-diagonal pairs - a common approach to Haar unitaries and circular elements
R-diagonal pairs - a common approach to Haar unitaries and circular elements
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R 对角线对 - 哈尔酉和圆形元素的常见方法
DOI:
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发表时间:
1996
期刊:
影响因子:
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通讯作者:
R. Speicher
中科院分区:
文献类型:
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作者:
A. Nica;R. Speicher
The Haar unitary and the circular element provide two of the most frequently used ∗-distributions in the free probability theory of Voiculescu, and in its remarkable applicationsto the study of free products of von Neumann algebras (see e.g. [4,5,11,12,19,20]). Thestarting point of the present paper is that if the R-transform (i.e. the free analogue of thelogarithm of the Fourier transform) of these ∗-distributions is considered, then expressionsof a similar nature are obtained. The formulas are:(I) [R(µ