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Introduction | |
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Basic concepts | |
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Non-commutative probability spaces and distributions | |
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Non-commutative probability spaces | |
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*-distributions (case of normal elements) | |
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*-distributions (general case) | |
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Exercises | |
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A case study of non-normal distribution | |
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Description of the example | |
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Dyck paths | |
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The distribution of a + a[superscript *] | |
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Using the Cauchy transform | |
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Exercises | |
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C[superscript *]-probability spaces | |
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Functional calculus in a C[superscript *]-algebra | |
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C[superscript *]-probability spaces | |
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*-distribution, norm and spectrum for a normal element | |
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Exercises | |
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Non-commutative joint distributions | |
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Joint distributions | |
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Joint *-distributions | |
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Joint *-distributions and isomorphism | |
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Exercises | |
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Definition and basic properties of free independence | |
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The classical situation: tensor independence | |
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Definition of free independence | |
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The example of a free product of groups | |
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Free independence and joint moments | |
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Some basic properties of free independence | |
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Are there other universal product constructions? | |
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Exercises | |
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Free product of *-probability spaces | |
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Free product of unital algebras | |
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Free product of non-commutative probability spaces | |
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Free product of *-probability spaces | |
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Exercises | |
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Free product of C[superscript *]-probability spaces | |
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The GNS representation | |
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Free product of C[superscript *]-probability spaces | |
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Example: semicircular systems and the full Fock space | |
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Exercises | |
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Cumulants | |
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Motivation: free central limit theorem | |
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Convergence in distribution | |
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General central limit theorem | |
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Classical central limit theorem | |
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Free central limit theorem | |
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The multi-dimensional case | |
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Conclusion and outlook | |
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Exercises | |
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Basic combinatorics I: non-crossing partitions | |
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Non-crossing partitions of an ordered set | |
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The lattice structure of NC(n) | |
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The factorization of intervals in NC | |
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Exercises | |
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Basic combinatorics II: Mobius inversion | |
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Convolution in the framework of a poset | |
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Mobius inversion in a lattice | |
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The Mobius function of NC | |
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Multiplicative functions on NC | |
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Functional equation for convolution with [Mu subscript n] | |
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Exercises | |
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Free cumulants: definition and basic properties | |
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Multiplicative functionals on NC | |
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Definition of free cumulants | |
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Products as arguments | |
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Free independence and free cumulants | |
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Cumulants of random variables | |
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Example: semicircular and circular elements | |
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Even elements | |
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Classical cumulants | |
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Exercises | |
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Sums of free random variables | |
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Free convolution | |
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Analytic calculation of free convolution | |
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Proof of the free central limit theorem via R-transform | |
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Free Poisson distribution | |
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Compound free Poisson distribution | |
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Exercises | |
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More about limit theorems and infinitely divisible distributions | |
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Limit theorem for triangular arrays | |
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Cumulants of operators on Fock space | |
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Infinitely divisible distributions | |
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Conditionally positive definite sequences | |
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Characterization of infinitely divisible distributions | |
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Exercises | |
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Products of free random variables | |
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Multiplicative free convolution | |
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Combinatorial description of free multiplication | |
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Compression by a free projection | |
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Convolution semigroups ([Mu superscript Characters not reproduciblet])[subscript tge]1 | |
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Compression by a free family of matrix units | |
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Exercises | |
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R-diagonal elements | |
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Motivation: cumulants of Haar unitary elements | |
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Definition of R-diagonal elements | |
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Special realizations of tracial R-diagonal elements | |
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Product of two free even elements | |
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The free anti-commutator of even elements | |
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Powers of R-diagonal elements | |
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Exercises | |
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Transforms and models | |
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The R-transform | |
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The multi-variable R-transform | |
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The functional equation for the R-transform | |
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More about the one-dimensional case | |
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Exercises | |
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The operation of boxed convolution | |
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The definition of boxed convolution, and its motivation | |
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Basic properties of boxed convolution | |
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Radial series | |
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The Mobius series and its use | |
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Exercises | |
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More on the one-dimensional boxed convolution | |
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Relation to multiplicative functions on NC | |
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The S-transform | |
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Exercises | |
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The free commutator | |
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Free commutators of even elements | |
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Free commutators in the general case | |
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The cancelation phenomenon | |
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Exercises | |
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R-cyclic matrices | |
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Definition and examples of R-cyclic matrices | |
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The convolution formula for an R-cyclic matrix | |
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R-cyclic families of matrices | |
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Applications of the convolution formula | |
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Exercises | |
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The full Fock space model for the R-transform | |
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Description of the Fock space model | |
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An application: revisiting free compressions | |
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Exercises | |
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Gaussian random matrices | |
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Moments of Gaussian random variables | |
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Random matrices in general | |
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Selfadjoint Gaussian random matrices and genus expansion | |
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Asymptotic free independence for several independent Gaussian random matrices | |
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Asymptotic free independence between Gaussian random matrices and constant matrices | |
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Unitary random matrices | |
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Haar unitary random matrices | |
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The length function on permutations | |
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Asymptotic freeness for Haar unitary random matrices | |
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Asymptotic freeness between randomly rotated constant matrices | |
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Embedding of non-crossing partitions into permutations | |
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Exercises | |
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Notes and comments | |
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References | |
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Index | |