2018
DOI: 10.7900/jot.2017jun28.2167
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Maximal amenability of the generator subalgebra in q-Gaussian von Neumann algebras

Abstract: In this article, we give explicit examples of maximal amenable subalgebras of the q-Gaussian algebras, namely, the generator masa is maximal amenable inside the q-Gaussian algebras for real numbers q with its absolute value sufficiently small. To achieve this, we construct a Riesz basis in the spirit of Rȃdulescu [23] and develop a structural theorem for the q-Gaussian algebras.

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Cited by 6 publications
(4 citation statements)
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“…[37,95] respectively that the generator MASA and the radial MASA admit the absorbing amenability property. This work inspired many papers establishing the absorbing amenability property (and other absorption properties such as Gamma stability) in many examples (see [8,36,61]).…”
Section: Introductionmentioning
confidence: 82%
See 1 more Smart Citation
“…[37,95] respectively that the generator MASA and the radial MASA admit the absorbing amenability property. This work inspired many papers establishing the absorbing amenability property (and other absorption properties such as Gamma stability) in many examples (see [8,36,61]).…”
Section: Introductionmentioning
confidence: 82%
“…This answered in the negative a question of Kadison at the 1967 Baton Rouge conference who asked if every self-adjoint operator in a II 1 -factor is contained in a hyperfinite subfactor. The technique of asymptotic orthogonality developed by Popa to achieve the above result has been used successfully to establish this maximal amenability property for various natural subalgebras of the free group factors, such as the radial MASA [9] (see also [8,61]). Recently Boutonnet and Popa also construct a continuum size family (M α ) α ) of interesting maximally amenable subalgebras [6] in any free product of diffuse tracial von Neumann algebras (in particular for free group factors) with the property that M α is not unitarily conjugate to M β if α = β.…”
Section: Introductionmentioning
confidence: 99%
“…For many examples of maximal amenable subalgebras of free group factors this has been verified [74,9,55], and typically uses a generalization of Popa's asymptotic orthogonality property, called the strong asymptotic orthogonality property implicitly defined in [36,Theorem 3.1]. Many exciting recent works [6,52,7] apply an alternative method using an analysis of states.…”
Section: Introductionmentioning
confidence: 99%
“…For example, in [Hou15] Houdayer defined a generalization of Popa's asymptotic orthogonal property now called the strong asymptotic orthogonality property from which one can deduce an amenable absorption property: if Q ≤ M is amenable and Q ∩ A is diffuse, then Q ⊆ A. This strengthening of the asymptotic orthogonality property was then used in [Wen16,BW16,PSW18] to give other examples of situations where one has amenable absorption for maximal amenable subalgebras of free group factors. We remark in passing that it is a conjecture of Peterson and Thom (see the discussion following [PT11, Proposition 7.7]) that every maximal amenable subalgebra of a free group factor has the amenable absorption property.…”
Section: Introductionmentioning
confidence: 99%