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1

Charbonnel, Anne-Marie. "Contribution à l'étude du spectre conjoint de systèmes d'opérateurs pseudodifférentiels qui commutent." Nantes, 1989. http://www.theses.fr/1989NANT2012.

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On considere plusieurs operateurs pseudodifferentiels dependant d'un petit parametre h, commutant deux a deux, agissant sur l'espace a n dimensions. L'un d'eux peut etre, par exemple, l'operateur de schroedinger. Nous definissons la notion de "spectre conjoint" pour ces operateurs, et etudions le comportement asymptotique de ce dernier dans deux types de situation: 1) nous supposons h fixe et nous nous interessons aux gcrandes valeurs de l'energie; 2) nous fixons un niveau d'energie, et etudions le comportement semi-classique du spectre conjoint, c'est-a-dire pour h tendant vers 0. Dans les de
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2

Phanzu, Serge Phanzu. "Every Pure Quasinormal Operator Has a Supercyclic Adjoint." Bowling Green State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1592579020787873.

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3

Moussai, Madani. "Continuite de certains operateurs integraux singuliers sur les espaces de besov." Paris 7, 1987. http://www.theses.fr/1987PA077016.

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On s'interesse a des conditions necessaires et suffisantes de continuite-l**(2) (resp. Continuite - besov b**(s)::(p,q)), des commutateurs entre les operateurs pseudo-differentiels o. P. D. De type s**(11,a); a1 (resp. S**(11,0)), et les fonctions dont les gradients sont bornes (resp. Des multiplicateurs de besov m(b**(s)::(p,q))). La continuite - besov du commutateur a l'aide du critere de lemarie, mene a etudier la continuite des o. P. D. De type s**(01,0) sur m(b**(sp,q)): les o. P. D. D'ordre 0 sont bornes sur les versions "localisees l**(e") de b**(s)::(p,q), par consequent sur m(b**(s)::
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4

Gustafsson, Tapper Michael. "Operator Feedback." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232505.

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Det här är en rapport som sammanfattar ett examensarbete av studenten Michael GustafssonTapper skriven under våren 2018. Examensarbetet är en del av mastern Integreradproduktutveckling inom spåret Teknisk design på KTH, Kungliga Tekniska Högskolan iStockholm, Sverige. Dagens montörer i monteringsliner i fabriker får sin feedback från sinaverktyg men ibland missas denna information av montörerna. Det här examensarbetetresulterade i en vidareutveckling av ett tidigare projekt in kursen MF2016 Industriell design högrekurs, del 2. Resultatet var en lösning av ett par skyddsglasögon vid namn Protec
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5

Smith, Tabrina M. "Operator Ranges and Porosity." Kent State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=kent1215466700.

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6

Mathew, Panakkal Jesu. "On Some Aspects of the Differential Operator." Digital Archive @ GSU, 2006. http://digitalarchive.gsu.edu/math_theses/12.

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The Differential Operator D is a linear operator from C1[0,1] onto C[0,1]. Its domain C1[0,1] is thoroughly studied as a meager subspace of C[0,1]. This is analogous to the status of the set of all rational numbers Q in the set of the real numbers R. On the polynomial vector space Pn the Differential Operator D is a nilpotent operator. Using the invariant subspace and reducing subspace technique an appropriate basis for the underlying vector space can be found so that the nilpotent operator admits its Jordan Canonical form. The study of D on Pn is completely carried out. Finally, the solu
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7

Matjila, D. M. "On a class of pseudo-differential operators in IRⁿ". Thesis, Rhodes University, 1988. http://hdl.handle.net/10962/d1001981.

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The class of pseudo-differential operators with symbols from Sm (superscript) po̧̧ (subscipt)(Ωx IRⁿ) has been extensively studied.The main assumption which characterises this class of symbols is that a(x,Ȩ) є Sm (superscript)po̧̧ (subscipt)(Ωx IRⁿ) should have a polynomial growth in the Ȩ variable only. The x-variable is controlled on compact subsets of Ω. A polynomial growth in both the x and Ȩ variables on a C°°(lR²ⁿ) function a(x,Ȩ) gives rise to a different class of symbols and a corresponding class of operators. In this work, such symbols and the action of the operators on the functi
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8

Bian, Wenming. "Operator inclusions and operator-differential inclusions." Thesis, University of Glasgow, 1998. http://theses.gla.ac.uk/2029/.

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In Chapter 2, we first introduce a generalized inverse differentiability for set-valued mappings and consider some of its properties. Then, we use this differentiability, Ekeland's Variational Principle and some fixed point theorems to consider constrained implicit function and open mapping theorems and surjectivity problems of set-valued mappings. The mapping considered is of the form F(x, u) + G (x, u). The inverse derivative condition is only imposed on the mapping x F(x, u), and the mapping x G(x, u) is supposed to be Lipschitz. The constraint made to the variable x is a closed convex cone
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9

Tazi, Hemida Mohamed. "Regularite l**(p) maximale pour une classe d'operateurs a caracteristiques multiples." Rennes 1, 1988. http://www.theses.fr/1988REN10046.

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Il s'agit de regarder dans le 1er sujet la regularite l**(p) maximale pour une classe d'operateurs a characteristiques multiples. Dans le 2eme sujet, nous etudions l'hypoellipticite maximale d'un systeme d'operateurs pseudo-differentiels
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10

Huettenmueller, Rhonda. "The Pettis Integral and Operator Theory." Thesis, University of North Texas, 2001. https://digital.library.unt.edu/ark:/67531/metadc2844/.

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Let (Ω, Σ, µ) be a finite measure space and X, a Banach space with continuous dual X*. A scalarly measurable function f: Ω→X is Dunford integrable if for each x* X*, x*f L1(µ). Define the operator Tf. X* → L1(µ) by T(x*) = x*f. Then f is Pettis integrable if and only if this operator is weak*-to-weak continuous. This paper begins with an overview of this function. Work by Robert Huff and Gunnar Stefansson on the operator Tf motivates much of this paper. Conditions that make Tf weak*-to-weak continuous are generalized to weak*-to­weak continuous operators on dual spaces. For instance, if Tf i
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11

Browning, Brian L. "Time and frequency domain scattering for the one-dimensional wave equation /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/5788.

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12

Krainer, Thomas. "The calculus of Volterra Mellin pseudodifferential operators with operator-valued symbols." Universität Potsdam, 2001. http://opus.kobv.de/ubp/volltexte/2008/2618/.

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We introduce the calculus of Mellin pseudodifferential operators parameters based on "twisted" operator-valued Volterra symbols as well aas the abstract Mellin calclus with holomorphic symbols. We establish the properties of the symblic and operational calculi, and we give and make use of explicit oscillatory integral formulas on the symbolic side, e. g., for the Leibniz-product, kernel cut-off, and Mellin quantization. Moreover, we introduce the notion of parabolicity for the calculi of Volterra Mellin operators, and construct Volterra parametrices for parabolic operators within the calculi.
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13

Hermi, Lotfi. "On the spectrum of the Dirichlet Laplacian and other elliptic operators /." free to MU campus, to others for purchase, 1999. http://wwwlib.umi.com/cr/mo/fullcit?p9953864.

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14

Monteillet, Aurélien. "Atomic Schrödinger Operator." Thesis, Uppsala University, Department of Mathematics, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-121420.

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15

Rasmussen, Nichlas. "Operator unit simulator." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-45676.

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Detta examensarbete utfördes som ett uppdrag av Atlas Copco där målet var att utveckla en programvara som kan simulera en OU (Operator Unit) i en PC miljö. Atlas Copcos egenutvecklade radiostyrningssystem för gruvfordon består av en sändare, kallad OU, och en mottagare, kallad MU (Machine Unit). En OU är en kontroller med reglage i form av knappar, joysticks och switchar och med indikatorer i form av LEDs och display. För att säkerställa att en OU endast kan kommunicera med en specifik MU och vice versa måste enheternas radiomoduler paras ihop genom en process som kallas ”learn link”, som görs
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16

Symes, Dominic. "Reflexive operator algebras." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308848.

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17

Böhm, Walter. "An Operator Limit." Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 1994. http://epub.wu.ac.at/282/1/document.pdf.

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18

Browning, Marguerite. "Null operator constructions." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/14701.

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19

Batchenko, Vladimir. "On the spectra of Schrödinger and Jacobi operators with complex-valued quasi-periodic algebro-geometric coefficients." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4136.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (May 23, 2006) Vita. Includes bibliographical references.
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20

Zinchenko, Maksym. "Topics in spectral and inverse spectral theory." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4460.

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Thesis (Ph.D.)--University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (May 2, 2007) Vita. Includes bibliographical references.
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21

Dorr, Hilary R. "Non-operator and farm operator landowner interest in agroforestry in Missouri." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4610.

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Thesis (M.S.) University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (May 20, 2007) Vita. Includes bibliographical references.
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22

Kim, Yonne Mi. "Unique continuation theorems for the Dirac operator and the Laplace operator." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14469.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1989.<br>Title as it appeared in M.I.T. Graduate List, Feb. 1989: Carleman inequalities and strong unique continuation.<br>Includes bibliographical references (leaf 59).<br>by Yonne Mi Kim.<br>Ph.D.
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23

Tummaluri, Raghuram R. "Operator Assignment in Labor Intensive Cells Considering Operation Time Based Skill Levels, Learning and Forgetting." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1126900571.

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24

Ramos, Priscila Santos. "Uma introdução aos operadores de Schrödinger com ênfase no caso unidimensional." Universidade Federal de Alagoas, 2009. http://repositorio.ufal.br/handle/riufal/1024.

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The main objective of this dissertation is to give an introduction to Schrödinger operators of the type H = -&#8710; + V. In these operators, &#8710; denotes the Laplacian of R&#8319; and V denotes the operator of multiplication by a function V both defined in a suitable subspace of L²(R&#8319;) with respect to the determination of its selfadjointess and of its spectrum.<br>Fundação de Amparo a Pesquisa do Estado de Alagoas<br>O objetivo principal desta dissertação é fornecer uma introdução aos operadores de Schrödinger do tipo H = -&#8710; + V, onde &#8710; denota o laplaciano do R&#8319; e
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25

Billing, P. J. "Computer simulation of plant operation for use in process operator training." Thesis, University of Bath, 1988. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760584.

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26

edu, wodzicki@math berkeley. "Commutator Structure of Operator Ideals." ESI preprints, 2001. ftp://ftp.esi.ac.at/pub/Preprints/esi1062.ps.

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27

Torshage, Axel. "Non-selfadjoint operator functions." Doctoral thesis, Umeå universitet, Institutionen för matematik och matematisk statistik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-143085.

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Spectral properties of linear operators and operator functions can be used to analyze models in nature. When dispersion and damping are taken into account, the dependence of the spectral parameter is in general non-linear and the operators are not selfadjoint. In this thesis non-selfadjoint operator functions are studied and several methods for obtaining properties of unbounded non-selfadjoint operator functions are presented. Equivalence is used to characterize operator functions since two equivalent operators share many significant characteristics such as the spectrum and closeness. Methods
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28

Levene, Rupert Howard. "Lie semigroup operator algebras." Thesis, Lancaster University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421841.

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29

Clark, Stephen Andrew. "Operator logarithms and exponentials." Thesis, University of Oxford, 2007. http://ora.ox.ac.uk/objects/uuid:132ebd14-420c-4c24-a38c-9838f7b7e303.

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Since Mclntosh's introduction of the H<sup>∞</sup>-calculus for sectorial operators, the topic has been studied by many authors. Haase has constructed a similar functional calculus for strip-type operators, and has also developed an abstract framework which unifies both of these examples and more. In this thesis we use this abstract functional calculus setting to study two particular problems in operator theory. The first of these is concerned with operator sums. We ask the question of when the sum log A+log B is closed, where A and B are a pair of injective sectorial operators whose resolvent
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30

SILVA, LUIS ANTONIO FRANCA. "METROPOLITAN SERVICE ETHERNET OPERATOR." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=7582@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>Este trabalho apresenta as principais características de um sistema telefônico de voz baseado na tecnologia TDM e de um sistema de comunicações ópticas baseado em no protocolo Ethernet. Os dois sistemas são comparados economicamente. A solução Ethernet foi então escolhida e avaliada para ser instalada priorizando sua utilização na área central do Rio de Janeiro em aplicações corporativas. Aplicações residenciais também foram avaliadas, com menor ênfase.<br>This work shows the legacy telephone system and optical communication system b
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31

Wang, Qing Yi S. M. Massachusetts Institute of Technology. "Transit extraboard operator scheduling." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/128995.

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Thesis: S.M. in Transportation, Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, September, 2020<br>Cataloged from student-submitted PDF of thesis.<br>Includes bibliographical references (pages 144-147).<br>In addition to operators who pick scheduled service duties, transit agencies have a separate group of operators to cover work that becomes open due to absence or other unexpected situations. This group of operators are referred to collectively as the extraboard. Another way to cover the open work is through operator overtime. Therefore, a central cha
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32

Zhang, Yaowei. "The Bourgain Spaces and Recovery of Magnetic and Electric Potentials of Schrödinger Operators." UKnowledge, 2016. http://uknowledge.uky.edu/math_etds/41.

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We consider the inverse problem for the magnetic Schrödinger operator with the assumption that the magnetic potential is in Cλ and the electric potential is of the form p1 + div p2 with p1, p2 ∈ Cλ. We use semiclassical pseudodifferential operators on semiclassical Sobolev spaces and Bourgain type spaces. The Bourgain type spaces are defined using the symbol of the operator h2Δ + hμ ⋅ D. Our main result gives a procedure for recovering the curl of the magnetic field and the electric potential from the Dirichlet to Neumann map. Our results are in dimension three and higher.
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33

Stefanov, Atanas. "On homogeneous Calderón-Zygmund operators with rough kernels /." free to MU campus, to others for purchase, 1999. http://wwwlib.umi.com/cr/mo/fullcit?p9951125.

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34

Dang, Vinh Ngoc. "Modeling operator cognition for accident sequence analysis : development of an operator-plant simulation." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10885.

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35

Ghanbari, Amirhossein. "Indoor multi-operator solutions Network sharing and Outsourcing network management and operation." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-143541.

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Indoor solutions as a part of cellular mobile networks planning have been used for years in a way to fulfill the lack of admissible coverage while subscribers experienced using cellular phones indoors. On the other hand, network capital and operational expenditures; that has also commonly been used for Distributed Antenna Systems (DAS) solutions in indoor deployments. Besides sharing, outsourcing network operation and maintenance has also been widely accepted by wireless carriers all around the world after that IT outsourcing flow, which started in late 90s, seemed to be quite promising for lo
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36

Turcu, George R. "Hypercyclic Extensions Of Bounded Linear Operators." Bowling Green State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1386189984.

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37

Labuschagne, L. E., and Louis E. Labuschagne. "Functions of operators and the classes associated with them." Doctoral thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/23260.

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The important classes of normally solvable, ϴ₊ (ϴ₋) and strictly singular (strictly cosingular) operators have long been studied in the setting of bounded or closed operators between Banach spaces. Results by Kato, Lacey, et al (see Goldberg [16; III.1.9, III.2.1 and III.2.3] ) led to the definition of certain norm related functions of operators (Γ, Δ and Γ₀) which provided a powerful new way to study the classes of ϴ₊ and strictly singular operators (see for example Gramsch[19], Lebow and Schechter[28] and Schechter[36]). Results by Brace and R.-Kneece[4] among others led to the definition of
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38

Ardila, Rene. "Morita equivalence of W*-correspondences and their Hardy algebras." Diss., University of Iowa, 2017. https://ir.uiowa.edu/etd/5703.

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Muhly and Solel developed a notion of Morita equivalence for C*- correspondences, which they used to show that if two C*-correspondences E and F are Morita equivalent then their tensor algebras $\mathcal{T}_{+}(E)$ and $\mathcal{T}_{+}(F)$ are (strongly) Morita equivalent operator algebras. We give the weak* version of this result by considering (weak) Morita equivalence of W*-correspondences and employing Blecher and Kashyap's notion of Morita equivalence for dual operator algebras. More precisely, we show that weak Morita equivalence of W*-correspondences E and F implies weak Morita equivale
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39

Takizawa, Michiru Clara. "The ladder operator approach to constructing conserved operators in integrable one-dimensional lattice models /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18577.pdf.

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40

Patterson, Cameron Webster. "An Economic Model of Subscriber Offloading Between Mobile Network Operators and a WLAN Operator." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/50660.

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With increasing mobile data demand there is a push towards heterogeneous networks. Small-scale operators (SSOs) of WLANs are becoming more prevalent, while Mobile Network Operators (MNOs) seek an outlet for their customers' data usage. These conditions prompt the need for an effective relationship between the two parties for the purpose of offloading cellular data traffic to WLANs in a way that is economically beneficial to all involved. This thesis presents a model of such a relationship, in which the SSO sets a strategic offloading price per subscriber and several MNOs can choose how many
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41

Wiesner, Dirk. "Polynomials in operator space theory /." Tönning ; Lübeck ; Marburg : Der Andere Verl, 2009. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=017610887&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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42

Ha, Vu Thi Ngoc. "Helmholtz operator in quaternionic analysis." [S.l. : s.n.], 2005. http://www.diss.fu-berlin.de/2005/61/index.html.

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43

Potter, Michael James A. "Berezin symbols and operator theory." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ53208.pdf.

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44

Sabourova, Natalia. "Real and complex operator norms." Licentiate thesis, Luleå : Luleå University of Technology, 2007. http://epubl.luth.se/1402-1757/2007/09.

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45

Mellberg, Anders. "Extension – Operator Environment for ForestHarvesters." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Maskinteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-21855.

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A forest harvester operator is today facing a stressful work environment with a high demand on coordination skills and effectiveness to run the operation with positive economical outcome. The learning phase is very long compared to similar work.The vision for this project was to transform the machine, through intuitive and innovative interface design, into an extension of the operator’s body. In this way it provides higher productivity as well as user friendliness, shorter learning phase and a healthier work situation.This was realized through the use of prior but yet not market available rela
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46

Khadivi, Mohammad Reza. "Operator theory and infinite networks." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/30019.

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47

McGarvey, M. "Normalisers of reflexive operator algebras." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517090.

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48

Balkare, Johan. "Shift Operator in l2 Space." Thesis, KTH, Matematik (Inst.), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147599.

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A Hilbert space H is the abstraction of a nite-dimensional Eu-clidean space. The spectrum of a bounded linear operator A : H !H , denoted (A), is given by all numbers 2 C such that (A􀀀I) isnot invertible. The shift operators are one type of bounded linear op-erators. In this report we prove ve claims regarding the spectrum ofthe shifts. We work in the Hilbert space `2 which consists of all squaresummable sequences, both single sided (x0; x1; x2; :::) and double sided(:::x􀀀1; x0; x1; :::). One of the most general results proved applies tothe weighted unilateral shift S dened for (x0; x1; x2; ::
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49

PEDROZA, LUIZ CARLOS C. "EXTENSION OPERATOR AND NEURON NETWORK." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1997. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=8452@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>Na tese se desenvolve a teoria do Operador de extensão (OPEX) e utiliza-se desta para compreender melhor algumas questões relativas a teoria de Redes Neurais(RN). A abordagem de Redes Neurais pela ótica do Operador de Extensão possibilita também um melhoramento no algoritmo de retropropagação de erro usado no treinamento supervisionado das Redes Neurais.<br>In this thesis, theory of Extension Operator is developed and used to understand some questions related to Neuron Networks Theory. The approach of Neuron Networs throug
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50

Lioudaki, Vasiliki. "Operator theory on Cp spaces." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/12432.

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