Search Results - "Bercovici, H."
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Operators invariant relative to a completely nonunitary contraction
Published in Mathematische Zeitschrift (01-12-2021)“…Given a contraction A on a Hilbert space H , an operator T on H is said to be A -invariant if ⟨ T x , x ⟩ = ⟨ T A x , A x ⟩ for every x ∈ H such that ‖ A x ‖ =…”
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Observations, Meteorites, and Models: A Preflight Assessment of the Composition and Formation of (16) Psyche
Published in Journal of geophysical research. Planets (01-03-2020)“…Some years ago, the consensus was that asteroid (16) Psyche was almost entirely metal. New data on density, radar properties, and spectral signatures indicate…”
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3
A new approach to subordination results in free probability
Published in Journal d'analyse mathématique (Jerusalem) (01-03-2007)“…We show that the subordination results of D. Voiculescu and Ph. Biane can be deduced from a continuity property of fixed points for analytic…”
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4
Extremal measures and clockwise overlays
Published in Discrete mathematics (06-02-2014)“…We establish in full generality the correspondence between saturated Horn inequalities and clockwise overlays. This was known in generic cases by work of…”
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5
Partially defined semigroups relative to multiplicative free convolution
Published in International Mathematics Research Notices (01-01-2005)“…Nica and Speicher have shown that every probability measure on the line belongs to a partial semigroup {μt : t ≥ 1} relative to additive free convolution…”
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Atoms and regularity for measures in a partially defined free convolution semigroup
Published in Mathematische Zeitschrift (01-12-2004)Get full text
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Characterization of singular numbers of products of operators in matrix algebras and finite von Neumann algebras
Published in Bulletin des sciences mathématiques (01-06-2015)“…We characterize in terms of inequalities the possible generalized singular numbers of a product AB of operators A and B having given generalized singular…”
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Intersections of Schubert varieties and eigenvalue inequalities in an arbitrary finite factor
Published in Journal of functional analysis (01-03-2010)“…The intersection ring of a complex Grassmann manifold is generated by Schubert varieties, and its structure is governed by the Littlewood–Richardson rule…”
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The Horn Conjecture for Sums of Compact Selfadjoint Operators
Published in American journal of mathematics (01-12-2009)“…We determine the possible nonzero eigenvalues of compact selfadjoint operators A,$B^{(1)} $,$B^{(2)} $, ...,$B^{(m)} $with the roperty that$A = B^{(1)} +…”
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Superconvergence to the central limit and failure of the Cramér theorem for free random variables
Published in Probability theory and related fields (01-06-1995)Get full text
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11
A property of free entropy
Published in Pacific journal of mathematics (01-09-2003)Get full text
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12
Exponential decay of the power spectrum of turbulence
Published in Journal of statistical physics (01-08-1995)Get full text
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13
The number of extremal components of a rigid measure
Published in Journal of combinatorial theory. Series A (01-10-2011)“…The Littlewood–Richardson rule can be expressed in terms of measures, and the fact that the Littlewood–Richardson coefficient is one amounts to a rigidity…”
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14
Obstructions to diagonalization modulo Lorentz ideals
Published in Pacific journal of mathematics (01-12-1999)Get full text
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15
A note on disjoint invariant subspaces
Published in The Michigan mathematical journal (01-01-1987)Get full text
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16
Stable Laws and Domains of Attraction in Free Probability Theory
Published in Annals of mathematics (01-05-1999)“…In this paper we determine the distributional behavior of sums of free (in the sense of Voiculescu) identically distributed, infinitesimal random variables…”
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17
A family of reductions for Schubert intersection problems
Published in Journal of algebraic combinatorics (01-06-2011)“…We produce a family of reductions for Schubert intersection problems whose applicability is checked by calculating a linear combination of the dimensions…”
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18
A real variable restatement of Riemann’s hypothesis
Published in Israel journal of mathematics (01-12-1984)Get full text
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19
Confluent operator algebras and the closability property
Published in Journal of functional analysis (01-06-2010)“…Certain operator algebras A on a Hilbert space have the property that every densely defined linear transformation commuting with A is closable. Such algebras…”
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On the Spectra of C 11 -Contractions
Published in Proceedings of the American Mathematical Society (01-11-1985)Get full text
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