Results 101 to 110 of about 766 (271)
Partial isometries and EP elements in rings with involution
, 2020 If R is a ring with involution, and a † is the Moore-Penrose inverse of a ∈ R, then the element a is called: In this paper we characterize partial isometries, EP and star-dagger elements in rings with involution.
Dijana Mosić, Dragan S Djordjević
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Ideais no produto cruzado parcial reduzido [PDF]
, 2012 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Matemática e Computação Científica, Florianópolis, 2011Dados um grupo G, uma C*-álgebra A e uma ação parcial ?
Cidral, Fabiano Carlos
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On C*-algebra of a semigroup of partial isometries
, 2006 A C∗-algebra associated to strongly continuous one-parameter semigroups of partial isometries is introduced as a groupoid C∗-algebra C∗(G). A one-to-one correspondence between non-degenerate representations of C∗(G) and the semigroups is established.
Lyudmila Turowska +6 more
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Arthroscopy Techniques, EarlyView.Abstract Combined acromioclavicular dislocation and coracoid process fracture disrupts the superior shoulder suspensory complex, leading to shoulder instability that often requires surgical intervention. This rare injury, increasingly identified through advanced diagnostics, lacks consensus on the optimal treatment. We describe a minimalist arthroscopy‐
Yijun He +4 more
wiley +1 more source
, 2001 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.Dado (A,G,a) um C* sistema dinâmico, estudaremos o produto cruzado da C*-algebra A pelo grupo discreto G pela ação a de G em A.
Gonçalves, Daniel
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Isometries of non-self-adjoint operator algebras
, 1990 We study isometries of certain non-self-adjoint operator algebras by means of the structure of the complete holomorphic vector fields on their unit balls and the associated partial Jordan triple products. We show that isometries of nest sub-algebras of B(
Baruch Solel +3 more
core +1 more source
Dynamic Ultrasound Evaluation Supraspinatus Tendon Injuries Using a Pilates Elastic Band
Arthroscopy Techniques, EarlyView.Abstract Supraspinatus tendon tears are a common cause of shoulder pain and dysfunction. Although magnetic resonance imaging and computed tomography arthrography are still considered the gold standard, ultrasound offers a reliable, accessible, and radiation‐free alternative.
Viet‐Tam Van +5 more
wiley +1 more source
Octonionic isometric isomorphisms and partial isometries
Forum MathematicumAbstract Very recently, two new notions of para-linear mappings and weak associative orthonormal bases were introduced in octonionic functional analysis, which have been proved to be powerful in formulating the basic theory, such as the Riesz representation theorem and the Parseval theorem.
Qinghai Huo, Guangbin Ren, Zhenghua Xu
openaire +2 more sources
Arthroscopy Techniques, EarlyView.Abstract Successful medial collateral ligament (MCL) reconstruction depends on multiple anatomical and biomechanical factors. Various techniques have been described, ranging from isolated superficial MCL reconstructions to complex combined medial reconstructions.
Pablo Gelber +2 more
wiley +1 more source
On a class of C-algebras generated by a countable family of partial isometries
, 2020 The paper investigates the properties of an operator T φ on the Hilbert space l 2(ℤ), which are induced by the mapping φ of the set ℤ into itself. It is shown if the mapping φ is such that every preimage has finite, but not equipotentionally bounded ...
Kuznetsova Y.
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