Results 11 to 20 of about 1,484,571 (231)
Restricted p-Isometry Properties of Partially Sparse Signal Recovery [PDF]
Discrete Dynamics in Nature and Society, 2013 By generalizing the restricted p-isometry property to the partially sparse signal recovery problem, we give a sufficient condition for exactly recovering partially sparse signal via the partial lp minimization (truncated lp minimization) problem with p ...
Haini Bi, Lingchen Kong, Naihua Xiu
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Characterizations of partial isometries and two special kinds of EP elements [PDF]
, 2020 summary:We give some sufficient and necessary conditions for an element in a ring to be an EP element, partial isometry, normal EP element and strongly EP element by using solutions of certain ...
Yao, Hua, Wei, Junchao, Zhao, Ruju
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Partial isometries in semi-Hilbertian spaces [PDF]
, 2008 In this work, the concepts of isometry, unitary and partial isometry on a Hilbert space are generalized when an additional semi-inner product is considered.
M. Celeste Gonzalez +5 more
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Quantum stochastic flows on universal partial isometry matrix C*-algebras [PDF]
, 2018 We give a simple algebraic construction of quantum stochastic flows on universal C*-algebras generated by partial isometry matrix relations. This is a large class of C*-algebras that subsumes the family of graph C*-algebras and, more generally, Cuntz ...
Lindsay, Martin +2 more
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2-hyperreflexivity and hyporeflexivity of power partial isometries [PDF]
Opuscula Mathematica, 2016 Power partial isometries are not always hyperreflexive neither reflexive. In the present paper it will be shown that power partial isometries are always hyporeflexive and \(2\)-hyperreflexive.
Kamila Piwowarczyk, Marek Ptak
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Towards the non-perturbative cosmological bootstrap
Journal of High Energy Physics, 2023 We study quantum field theory on a de Sitter spacetime dS d+1 background. Our main tool is the Hilbert space decomposition in irreducible unitary representations of its isometry group SO(d + 1, 1). As the first application of the Hilbert space formalism,
Matthijs Hogervorst +2 more
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Extensions of symmetric operators I: The inner characteristic function case
Concrete Operators, 2015 Given a symmetric linear transformation on a Hilbert space, a natural problem to consider is the characterization of its set of symmetric extensions. This problem is equivalent to the study of the partial isometric extensions of a fixed partial isometry.
Martin R.T.W.
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Computational Models of Certain Hyperspaces of Quasi-metric Spaces [PDF]
Logical Methods in Computer Science, 2011 In this paper, for a given sequentially Yoneda-complete T_1 quasi-metric space (X,d), the domain theoretic models of the hyperspace K_0(X) of nonempty compact subsets of (X,d) are studied.
Massoud Pourmahdian, Mahdi Ali-Akbari
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A Physically Consistent Model for Forced Torsional Vibrations of Automotive Driveshafts
Computation, 2022 The aim of this research was to design a physically consistent model for the forced torsional vibrations of automotive driveshafts that considered aspects of the following phenomena: excitation due to the transmission of the combustion engine through the
Mihai Bugaru, Andrei Vasile
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Homology for operator algebras III: partial isometry homotopy and triangular algebras.
, 1998 The partial isometry homology groups Hn dened in Power [1] and a related chain complex homology CH are calculated for various triangular operator algebras, including the disc algebra. These invariants are closely connected with K-theory.
Power, Stephen C.
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