Abstract
The main purposes of this paper are (i) to construct-and-study weighted-semicircular elements from mutually orthogonal \(\left| \mathbb {Z} \right| \)-many projections, and the Banach \(*\)-probability space \(\mathbb {L}_{Q}\) generated by these operators, (ii) to establish \(*\)-isomorphisms on \( \mathbb {L}_{Q}\) induced by shifting processes on the set \(\mathbb {Z}\) of integers, (iii) to consider how the \(*\)-isomorphisms of (ii) generates Banach-space adjointable operators acting on the Banach \(*\)-algebra \(\mathbb {L}_{Q}\), (iv) to investigate operator-theoretic properties of the operators of (iii), and (v) to study how the Banach-space operators of (iii) distorts the original free-distributional data on \(\mathbb {L}_{Q}\). As application, one can check how the semicircular law is distorted by our Banach-space operators on \(\mathbb {L}_{Q}\).
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Communicated by Palle Jorgensen.
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Cho, I. Banach-Space Operators Acting on Semicircular Elements Induced by Orthogonal Projections. Complex Anal. Oper. Theory 13, 4065–4115 (2019). https://doi.org/10.1007/s11785-019-00951-w
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DOI: https://doi.org/10.1007/s11785-019-00951-w
Keywords
- Free probability
- Projections
- Weighted-semicircular elements
- Semicircular elements
- Integer-shifts
- Integer-shift operators