Results 61 to 70 of about 5,037,194 (368)
A WEAK HILBERT SPACE THAT IS A TWISTED HILBERT SPACE
Journal of the Institute of Mathematics of Jussieu, 2018 We construct a weak Hilbert space that is a twisted Hilbert space.
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Mathematische Zeitschrift, 1992 The paper presents some results and a list of examples concerning the structure of subgroups \(\Gamma\) (with respect to addition) of a Hilbert space \(H\), especially their topological dimension \(ind\) and fundamental sets, i.e. closed and convex subsets \(K\) of \(H\) such that \(\pi(K)=H/\Gamma\) and \(\pi_{\mid\text{rint}(K)}\) is a homeomorphism ...
Dobrowski, Tadeusz, Grabowski, Janusz
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Hilbert space representation of the minimal length uncertainty relation. [PDF]
Physical Review D, Particles and fields, 1994 The existence of a minimal observable length has long been suggested in quantum gravity as well as in string theory. In this context a generalized uncertainty relation has been derived which quantum theoretically describes the minimal length as a minimal
Achim Kempf, G. Mangano, R. Mann
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On the definition of Hilbert space
Manuscripta Mathematica, 1977 The projection theorem expresses a central feature of classical Hilbert space. Do other infinite dimensional sesquilinear spaces share this property? We show here that this is not the case for several prominent candidates; in particular Kalish's p-adic Hilbert spaces, Springers non archimedean normed spaces, the positive definite spaces over ordered ...
Gross, Herbert, Keller, Hans A.
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On convolutions in Hilbert spaces [PDF]
Functional Analysis and Its Applications, 2017 A convolution in a Hilbert space is defined, and its basic properties are studied.
Michael Ruzhansky +3 more
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Convexity, boundedness, and almost periodicity for differential equations in Hillbert space
International Journal of Mathematics and Mathematical Sciences, 1979 There are three kinds of results. First we extend and sharpen a convexity inequality of Agmon and Nirenberg for certain differential inequalities in Hilbert space.
Jerome A. Goldstein
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Sampling in a Hilbert space [PDF]
Proceedings of the American Mathematical Society, 1996 An analog of the Whittaker-Shannon-Kotel′nikov sampling theorem is derived for functions with values in a separable Hilbert space. The proof uses the concept of frames and frame operators in a Hilbert space. One of the consequences of this theorem is that it allows us to derive sampling theorems associated with boundary-value problems and some ...
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Open superstring field theory on the restricted Hilbert space [PDF]
, 2016 A bstractIt appears that the formulation of an action for the Ramond sector of open superstring field theory requires to either restrict the Hilbert space for the Ramond sector or to introduce auxiliary fields with picture −3/2.
Sebastian J. H. Konopka, I. Sachs
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Electron-hole generations: A numerical approach to interacting fermion systems
, 2002 A new approach, motivated by Fock space localization, for constructing a reduced many-particle Hilbert space is proposed and tested. The self-consistent Hartree-Fock (SCHF) approach is used to obtain a single-electron basis from which the many-particle ...
Abrahams +25 more
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International Journal of Adaptive Control and Signal Processing, EarlyView.Workflow of the parameter optimization process for ITSC fault detection, applying Differential Evolution optimization and the Smooth Pseudo Wigner‐Ville Distribution for signal processing. The optimized parameters are then used in the failure identification pipeline, which combines the signal processing with a YOLO‐based architecture for fault severity
Rafael Martini Silva +4 more
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