Two band members who alternate between home studio setups. We also work alone (as "Operator 1" (& "Zieglar") and "Operator 2"). We are still discovering new sounds and textures for incorporation within our respective projects. Fond of a wide variety of musical styles not necessarily the electronic masters. Now Available ************* Check out the ambient side of Operator 1, under "Zieglar" on the IUMA site. Please also check out our friend...

Topic: Operator

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1.0

Jan 3, 2019
01/19

by
Nordic Summer School in Mathematics (1988 : Sønderborg, Denmark)

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458 pages ; 25 cm

Topics: Schrödinger operator -- Congresses, Schrödinger operator, Hamilton-Operator, Sonderburg

Operator Approach to Linear Problems of Hydrodynamics: Volume 2: Nonself-adjoint Problems for Viscous Fluids Author: Nikolay D. Kopachevsky, Selim G. Krein Published by Birkhäuser Basel ISBN: 978-3-0348-9425-8 DOI: 10.1007/978-3-0348-8063-3 Table of Contents: Introduction Motion of Bodies with Cavities Completely Filled with Viscous Incompressible Fluids Motion of Viscous Fluids in Open Containers Oscillations of Capillary Viscous Fluids Oscillations of Partially Dissipative Hydrosystems...

Topics: Mathematics, Operator theory, Mathematics, Operator theory

In this paper represented method for edge detection and represent different operator using edge detection. In this paper the edge detection is use two technique gradient based technique and laplacian based technique. In the first section of the paper describe the introduction and the second section is describe of the paper is gradient operator and the third section is describe the laplacian operator. The gradient based techniques are as Robert Cross operator, sobel operator, prewitt operator....

Topics: Edge Detection, Gradient Operator, Laplacian Operator

Limit Operators and Their Applications in Operator Theory Author: Vladimir Rabinovich, Bernd Silbermann, Steffen Roc Published by Birkhäuser Basel ISBN: 978-3-0348-9619-1 DOI: 10.1007/978-3-0348-7911-8 Table of Contents: Limit Operators Fredholmness of Band-dominated Operators Convolution Type Operators on ℝ Pseudodifferential Operators Pseudodifference Operators Finite Sections of Band-dominated Operators Axiomatization of the Limit Operators Approach

Topics: Mathematics, Operator theory, Mathematics, Operator theory

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293

Oct 4, 2013
10/13

by
G. Jungman

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Contents: Structure Theory I;von Neumann Algebras;States and Representations; Structure Theory II; Matrices; Automorphism Groups; Extensions; K-Theory; Nuclear C Algebras. Lecture Notes Collection FreeScience.info ID2231 Obtained from http://t8web.lanl.gov/people/jungman/op-alg.pdf http://www.freescience.info/go.php?pagename=books&id=2231

Topics: Operator Algebras, "

http://uf.catalog.fcla.edu/uf.jsp?st=UF021609369%26ix=pm%26I=0%26V=D%26pm=1

Topic: Hamiltonian operator.

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2.0

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v. ; 25 cm. --

Topic: Operator theory

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Dec 9, 2011
12/11

by
Gohberg, I. (Israel), 1928-; Goldberg, Seymour, 1928- joint author

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Bibliography: p. 280-281

Topic: Operator theory

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Logo Blog

Topic: Operator Sekolah

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0.0

Aug 2, 2019
08/19

by
Kadison, Richard V., 1925-

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v. ; 24 cm

Topic: Operator algebras

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0.0

Sep 14, 2019
09/19

by
Kadison, Richard V., 1925-

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v. ; 24 cm

Topic: Operator algebras

8,968
9.0K

Mar 21, 2017
03/17

by
Nhay Brandalicious

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Operator sekolah Cigandamekar

Topic: Logo Operator

From the bitsavers.org collection, a scanned-in computer-related document. mit :: ai :: aim :: AIM-142

Topics: operator, symbol, binary, string, operand, search, current, level, unary, character, binary...

994
994

Jul 31, 2012
07/12

by
Patrick Bruskiewich

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In undergraduate quantum mechanics parity is introduced with the creation and annihilation operators (the Fock representation) for the one dimensional quantum harmonic oscillator. In this paper a pedagogical approach is taken to derive the parity operator in terms of this operator formalism.

Topics: Parity Operator, Quantum Harmonic Oscillator. creation operator, annihilation operator, Fock...

Edge Detection is one of the important and most frequently used approaches for Image Segmentation in Digital Image processing. Selection of particular algorithm for detecting edges of images in presence of noise is always a challenging task. This paper mainly focuses on brief Study of different edge detection algorithms for images in presence of noise. In this paper we have studied Prewitt, Sobel, Robert, and Canny edge detection algorithms to find the better method in image edge detection...

Topics: Edge Detection, Sobel Operator, Prewitt Operator, Robert Operator & Canny Edge Detector

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113

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Based on the Einstein operator, the operational rules of interval neutrosophic numbers are defined, according to the combination of Einstein operations and generalized aggregation operators, the interval neutrosophic generalized weighted Einstein average (INGWEA) operator, interval neutrosophic generalized ordered weighted Einstein average (INGOWEA) operator and interval neutrosophic generalized hybrid weighted Einstein average (INGHWEA) operator are proposed .

Topics: interval neutrosophic number, Einstein operator, generalized averaging operator

603
603

Jul 25, 2006
07/06

by
Connie Lyon RT, (R) (QM)

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A discussion of the philosophy behind the ROC Limited Radiography Course and a brief description of how it is organized.

Topics: limited operator, limited operator course, arrt limited scope test

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1.0

Jun 26, 2018
06/18

by
Evgenios Kakariadis; Orr Shalit

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We study operator algebras arising from monomial ideals in the ring of polynomials in noncommuting variables through the apparatus of subproduct systems and C*-correspondences. We provide a full comparison amongst the related operator algebras. For our analysis we isolate a partially defined dynamical system, to which we refer as the quantised dynamics of the monomial ideal. In addition we revisit several previously considered constructions. These include Matsumoto's subshift C*-algebras, as...

Topics: Mathematics, Operator Algebras

Source: http://arxiv.org/abs/1501.06495

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4.0

Jun 28, 2018
06/18

by
Yosafat E. P. Pangalela

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For a row-finite higher-rank graph {\Lambda}, we construct a higher-rank graph T{\Lambda} such that the Toeplitz algebra of {\Lambda} is isomorphic to the Cuntz-Krieger algebra of T{\Lambda}. We then prove that the higher-rank graph T{\Lambda} is always aperiodic and use this fact to give another proof of a uniqueness theorem for the Toeplitz algebras of higher-rank graphs.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1507.07610

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2.0

Jun 27, 2018
06/18

by
S. Kaliszewski; Tron Omland; John Quigg

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In this partly expository paper we compare three different categories of C*-algebras in which crossed-product duality can be formulated, both for actions and for coactions of locally compact groups. In these categories, the isomorphisms correspond to C*-algebra isomorphisms, imprimitivity bimodules, and outer conjugacies, respectively. In each case, a variation of the fixed-point functor that arises from classical Landstad duality is used to obtain a quasi-inverse for a crossed-product functor....

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1503.00663

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2.0

Jun 27, 2018
06/18

by
Sriwulan Adji; Saeid Zahmatkesh

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Let $\Gamma^{+}$ be the positive cone in a totally ordered abelian group $\Gamma$, and $\alpha$ an action of $\Gamma^{+}$ by extendible endomorphisms of a $C^{\ast}$-algebra $A$. Suppose $I$ is an extendible $\alpha$-invariant ideal of $A$. We prove that the partial-isometric crossed product $\mathcal{I}:=I\times_{\alpha}^{\textrm{piso}}\Gamma^{+}$ embeds naturally as an ideal of $A\times_{\alpha}^{\textrm{piso}}\Gamma^{+}$, such that the quotient is the partial-isometric crossed product of the...

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1504.04083

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4.0

Jun 27, 2018
06/18

by
Mariusz Budziński; Paweł Kasprzak

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The notion of a quantum family of maps has been introduced in the framework of C*-algebras. As in the classical case, one may consider a quantum family of maps preserving additional structures (e.g. quantum family of maps preserving a state). In this paper we define a quantum family of homomorphisms of locally compact quantum groups. Roughly speaking, we show that such a family is classical. The purely algebraic counterpart of the discussed notion, i.e. a quantum family of homomorphisms of Hopf...

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1506.03921

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2.0

Jun 28, 2018
06/18

by
Ken Dykema; Joseph Noles; Fedor Sukochev; Dmitriy Zanin

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The theory of direct integral decompositions of both bounded and unbounded operators is further developed; in particular, results about spectral projections, functional calculus and affiliation to von Neumann algebras are proved. For operators belonging to or affiliated to a tracial von Neumann algebra that is a direct integral von Neumann algebra, the Brown measure is shown to be given by the corresponding integral of Brown measures.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1509.03362

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1.0

Jun 29, 2018
06/18

by
Guimei An; Mingchu Gao

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Inspired by R. Speicher's multidimensional free central limit theorem and semicircle families, we prove an infinite dimensional compound Poisson limit theorem in free probability, and define infinite dimensional compound free Poisson distributions in a non-commutative probability space. Infinite dimensional free infinitely divisible distributions are defined and characterized in terms of its free cumulants. It is proved that for a distribution of a sequence of random variables, the following...

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1603.08612

2
2.0

Jun 28, 2018
06/18

by
David R. Pitts; Vrej Zarikian

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Given an inclusion D $\subseteq$ C of unital C*-algebras, a unital completely positive linear map $\Phi$ of C into the injective envelope I(D) of D which extends the inclusion of D into I(D) is a pseudo-expectation. The set PsExp(C,D) of all pseudo-expectations is a convex set, and for abelian D, we prove a Krein-Milman type theorem showing that PsExp(C,D) can be recovered from its extreme points. When C is abelian, the extreme pseudo-expectations coincide with the homomorphisms of C into I(D)...

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1508.05048

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3.0

Jun 27, 2018
06/18

by
Jonathan H. Brown; Lisa Orloff Clark; Adam Sierakowski; Aidan Sims

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From a suitable groupoid G, we show how to construct an amenable principal groupoid whose C*-algebra is a Kirchberg algebra which is KK-equivalent to C*(G). Using this construction, we show by example that many UCT Kirchberg algebras can be realised as the C*-algebras of amenable principal groupoids.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1504.04794

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0.0

Jun 29, 2018
06/18

by
Victor Kaftal; Jireh Loreaux

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Kadison's Pythagorean theorem (2002) provides a characterization of the diagonals of projections with a subtle integrality condition. Arveson (2007), Kaftal, Ng, Zhang (2009), and Argerami (2015) all provide different proofs of that integrality condition. In this paper we interpret the integrality condition in terms of the essential codimension of a pair of projections introduced by Brown, Douglas and Fillmore (1973), or, equivalently of the index of a Fredholm pair of projections introduced by...

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1609.06754

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0.0

Jun 29, 2018
06/18

by
Sandeepan Parekh; Koichi Shimada; Chenxu Wen

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In this article, we give explicit examples of maximal amenable subalgebras of the $q$-Gaussian algebras, namely, the generator subalgebra 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 R\u{a}dulescu and develop a structural theorem for the $q$-Gaussian algebras.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1609.08542

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0.0

Jun 29, 2018
06/18

by
Yasuhiko Sato

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We study actions of countable discrete amenable groups on unital separable simple nuclear Z-absorbing C*-algebras. Under a certain assumption on tracial states, which is automatically satisfied in the case of a unique tracial state, the crossed product is shown to absorb the Jiang-Su algebra Z tensorially.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1612.08529

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0.0

Jun 30, 2018
06/18

by
Wicharn Lewkeeratiyutkul; Saeid Zahmatkesh

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Let $(A,\alpha)$ be a system consisting of a $C^*$-algebra $A$ and an automorphism $\alpha$ of $A$. We describe the primitive ideal space of the partial-isometric crossed product $A\times_{\alpha}^{\textrm{piso}}\mathbb{N}$ of the system by using its realization as a full corner of a classical crossed product and applying some results of Williams and Echterhoff.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1701.04196

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1.0

Jun 29, 2018
06/18

by
Khadijeh Karimi; Kamran Sharifi

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We derive Paschke's GNS construction for completely positive maps on unital pro-C*-algebras from the KSGNS construction, presented by M. Joita [J. London Math. Soc. {\bf 66} (2002), 421--432], and then we deduce an analogue of Stinespring theorem for Hilbert modules over pro-C*-algebras. Also, we obtain a Radon-Nikodym type theorem for operator valued completely positive maps on Hilbert modules over pro-C*-algebras.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1611.04759

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0.0

Jun 29, 2018
06/18

by
Khadijeh Karimi; Kamran Sharifi

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We study induced representations of Hilbert modules over locally C*-algebras and their non-degeneracy. We show that if $V$ and $W$ are Morita equivalent Hilbert modules over locally C*-algebras $A$ and $B$, respectively, then there exists a bijective correspondence between equivalence classes of non-degenerate representations of $V$ and $W$.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1611.04707

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0.0

Jun 30, 2018
06/18

by
Frederic Latremoliere

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The modular Gromov-Hausdorff propinquity is a distance on classes of modules endowed with quantum metric information, in the form of a metric form of a connection and a left Hilbert module structure. This paper proves that the family of Heisenberg modules over quantum two tori, when endowed with their canonical connections, form a continuous family for the modular propinquity.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1703.07073

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0.0

Jun 30, 2018
06/18

by
Petr Ivankov

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This article contains is concerned with noncommutative analogue of topological finitely listed covering projections. In my previous article I have already find a family of covering projections of the noncommutative torus. This article describes all covering projections of the noncommutative torus.

Topics: Mathematics, Operator Algebras

Source: http://arxiv.org/abs/1402.2050

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0.0

Jun 30, 2018
06/18

by
Takahiro Hasebe; Noriyoshi Sakuma

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We give a complete list of the Lebesgue-Jordan decomposition of Boolean and monotone stable distributions and a complete list of the mode of them. They are not always unimodal.

Topics: Probability, Mathematics, Operator Algebras

Source: http://arxiv.org/abs/1403.2487

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0.0

Jun 30, 2018
06/18

by
Michael Y. Sun

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We show that for any countable discrete maximally almost periodic group $G$ and any UHF algebra $A$, there exists a strongly outer product type action $\alpha$ of $G$ on $A$. We also show the existence of countable discrete almost abelian group actions with a certain Rokhlin property on the universal UHF algebra. Consequently we get many examples of unital separable simple nuclear $C^*$-algebras with tracial rank zero and a unique tracial state appearing as crossed products.

Topics: Mathematics, Operator Algebras

Source: http://arxiv.org/abs/1403.5357

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0.0

Jun 30, 2018
06/18

by
Sooran Kang; Alex Kumjian; Judith Packer

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The quantum Heisenberg manifolds are noncommutive manifolds constructed by M. Rieffel as strict deformation quantizations of Heisenberg manifolds and have been studied by various authors. Rieffel constructed the quantum Heisenberg manifolds as the generalized fixed-point algebras of certain crossed product $C^*$-algebras, and they also can be realized as crossed products of $C(\mathbb{T}^2)$ by Hilbert $C^*$-bimodules in the sense of Abadie et al. In this paper, we describe how the quantum...

Topics: Mathematics, Operator Algebras

Source: http://arxiv.org/abs/1403.5313

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0.0

Jun 30, 2018
06/18

by
Miguel Bermudez

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In this paper we define $L^{2}$-homology and $L^{2}$-Betti numbers for tracial *-algebras $A$ with respect to a von Neumann subalgebra $B$. When $B$ is reduced to the field of complex numbers we recover the $L^{2}$-Betti numbers of $A$ as defined by A. Connes and D. Shlyakhtenko, but we will show that taking into account the role of the von Neumann subalgebra yields to a number of advantages like, for instance, a much better behavior with respect to compression and directed sums. Our main...

Topics: Mathematics, Operator Algebras

Source: http://arxiv.org/abs/1403.6044

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0.0

Jun 30, 2018
06/18

by
Semyon Litvinov

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For a von Neumann algebra $\cal M$ with a faithful normal tracial state $\tau$ and a positive ergodic homomorphism $\alpha:\mathcal L^1(\mathcal M,\tau)\to \mathcal L^1(\mathcal M,\tau)$ such that $\alpha$ does not increase the norm in $\mathcal M$ and $\tau \circ \alpha=\tau$, we establish a non-commutative counterpart of the classical Wiener-Wintner Theorem.

Topics: Mathematics, Operator Algebras

Source: http://arxiv.org/abs/1405.4427

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0.0

Jun 29, 2018
06/18

by
Blanchard Etienne

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We construct in this note a unital properly infinite C*-algebra which is not K$_1$-injective.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1606.04773

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0.0

Jun 28, 2018
06/18

by
Selçuk Barlak; Gábor Szabó

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We define and examine sequentially split $*$-homomorphisms between $\mathrm{C}^*$-algebras and $\mathrm{C}^*$-dynamical systems. For a $*$-homomorphism, the property of being sequentially split can be regarded as an approximate weakening of being a split-injective inclusion of $\mathrm{C}^*$-algebras. We show for a sequentially split $*$-homomorphism that a multitude of $\mathrm{C}^*$-algebraic approximation properties pass from the target algebra to the domain algebra, including virtually all...

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1510.04555

2
2.0

Jun 28, 2018
06/18

by
Baojie Jiang; Chi-Keung Ng

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We generalize the main result of Kamalov and show that if $G$ is an amenable discrete group with an action $\alpha$ on a finite nuclear unital $C^*$-algebra $A$ such that the reduced crossed product $A\rtimes_{\alpha,r} G$ has property $T$, then $G$ is finite and $A$ is finite dimensional. As an application, an infinite discrete group $H$ is non-amenable if and only if the uniform Roe algebra $C^*_u(H)$ has property $T$.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1511.03397

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0.0

Jun 29, 2018
06/18

by
Paul McKenney; Alessandro Vignati

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We prove some stability results for certain classes of C*-algebras. We prove that whenever $A$ is a finite-dimensional C*-algebra, $B$ is a C*-algebra and $\phi\colon A\to B$ is approximately a $^*$-homomorphism then there is an actual $^*$-homomorphism close to $\phi$ by a factor depending only on how far is $\phi$ from being a $^*$-homomorphism and not on $A$ or $B$.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1601.05445

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0.0

Jun 29, 2018
06/18

by
Adam Morgan

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Given two correspondences $X$ and $Y$ and a discrete group $G$ which acts on $X$ and coacts on $Y$, one can define a twisted tensor product $X\boxtimes Y$ which simultaneously generalizes ordinary tensor products and crossed products by group actions and coactions. We show that, under suitable conditions, the Cuntz-Pimsner algebra of this product, $\mathcal O_{X\boxtimes Y}$, is isomorphic to a "balanced" twisted tensor product $\mathcal O_X\boxtimes_\mathbb T\mathcal O_Y$ of the...

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1601.07826

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0.0

Jun 29, 2018
06/18

by
Vladimir Chilin; Semyon Litvinov

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For a noncommutative Orlicz space associated with a semifnite von Neumann algebra, a faithful normal semifnite trace and an Orlicz function satisfying $(\delta_2,\Delta_2)-$condition, an individual ergodic theorem is proved.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1602.00281

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Jun 29, 2018
06/18

by
Søren Eilers; Gunnar Restorff; Efren Ruiz; Adam P. W. Sørensen

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We show that the Cuntz splice induces stably isomorphic graph $C^*$-algebras.

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1602.03709

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0.0

Jun 29, 2018
06/18

by
Roland Speicher; Janusz Wysoczanski

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We revive the concept of Lambda-freeness of Mlotkowski, which describes a mixture of classical and free independence between algebras of random variables. In particular, we give a description of this in terms of cumulants; this will be instrumental in the subsequent paper [SW] where the quantum symmetries underlying these mixtures of classical and free independences will be considered.

Topics: Probability, Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1603.08758

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Jun 29, 2018
06/18

by
George K. Eleftherakis; Evgenios T. A. Kakariadis

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We introduce and examine the notions of strong $\Delta$-equivalence and strong TRO equivalence for operator spaces. We show that they behave in an analogous way to how strong Morita equivalence does for the category of C*-algebras. In particular, we prove that strong $\Delta$-equivalence coincides with stable isomorphism under the expected countability hypothesis, and that strongly TRO equivalent operator spaces admit a correspondence between particular representations. Furthermore we show that...

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1603.09609

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Jun 28, 2018
06/18

by
Hossein Larki

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Let $\mathcal{G}$ be an ultragraph and let $C^*(\mathcal{G})$ be the associated $C^*$-algebra introduced by Mark Tomforde. For any gauge invariant ideal $I_{(H,B)}$ of $C^*(\mathcal{G})$, we analyze the structure of the quotient $C^*$-algebra $C^*(\mathcal{G})/I_{(H,B)}$. For simplicity's sake, we first introduce the notion of quotient ultragraph $\mathcal{G}/(H,B)$ and an associated $C^*$-algebra $C^*(\mathcal{G}/(H,B))$ such that $C^*(\mathcal{G}/(H,B))\cong C^*(\mathcal{G})/I_{(H,B)}$. We...

Topics: Operator Algebras, Mathematics

Source: http://arxiv.org/abs/1512.00346