Results 51 to 60 of about 359,212 (230)

Some approximate Gauss–Newton-type methods for nonlinear ill-posed problems; pp. 227–237 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2013
This paper treats numerical methods for solving the nonlinear ill-posed equation F(x) = 0, where the operator F is a Fréchet differentiable operator from one Hilbert space into another Hilbert space.
Inga Kangro, Raul Kangro, Otu Vaarmann
doaj   +1 more source

Super Hilbert Spaces [PDF]

open access: yesCommunications in Mathematical Physics, 2000
The basic mathematical framework for super Hilbert spaces over a Grassmann algebra with a Grassmann number-valued inner product is formulated. Super Hilbert spaces over infinitely generated Grassmann algebras arise in the functional Schroedinger representation of spinor quantum field theory in a natural way.
openaire   +3 more sources

Weighted Iterated Radial Composition Operators between Some Spaces of Holomorphic Functions on the Unit Ball

open access: yesAbstract and Applied Analysis, 2010
The boundedness and compactness of weighted iterated radial composition operators from the mixed-norm space to the weighted-type space and the little weighted-type space on the unit ball are characterized here.
Stevo Stević
doaj   +1 more source

The bulk Hilbert space of double scaled SYK

open access: yesJournal of High Energy Physics, 2022
The emergence of the bulk Hilbert space is a mysterious concept in holography. In [1], the SYK model was solved in the double scaling limit by summing chord diagrams.
Henry W. Lin
doaj   +1 more source

(Re)Construction of Quantum Space-Time: Transcribing Hilbert into Configuration Space

open access: yesEntropy
Space-time in quantum mechanics is about bridging Hilbert and configuration space. Thereby, an entirely new perspective is obtained by replacing the Newtonian space-time theater with the image of a presumably high-dimensional Hilbert space, through which
Karl Svozil
doaj   +1 more source

Frames in super Hilbert modules [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
In this paper, we define super Hilbert module and investigate frames in this space. Super Hilbert modules are  generalization of super Hilbert spaces in Hilbert C*-module setting.
Mehdi Rashidi-Kouchi
doaj  

Frames of subspaces in Hilbert spaces with W-metrics

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015
In this paper we start considering a sesquilinear form 〈W·,·〉 defined over a Hilbert space (ℌ,〈·,·〉) where W is bounded (W* = W ∈ Ɓ(ℌ)) and ker W = {0}. We study the dynamic of frame of subspaces over the completion of (ℌ, 〈W·,·〉) which is denoted by ℌW ...
Acosta-Humánez Primitivo   +2 more
doaj   +1 more source

Quantization of static space-times

open access: yes, 2002
A 4-dimensional Lorentzian static space-time is equivalent to 3-dimensional Euclidean gravity coupled to a massless Klein-field. By canonically quantizing the coupling model in the framework of loop quantum gravity, we obtain a quantum theory which ...
A. Ashtekar   +30 more
core   +1 more source

Strong Convergence Theorems for Maximal Monotone Operators with Nonspreading Mappings in a Hilbert Space

open access: yesAbstract and Applied Analysis, 2012
We prove the strong convergence theorems for finding a common element of the set of fixed points of a nonspreading mapping T and the solution sets of zero of a maximal monotone mapping and an α-inverse strongly monotone mapping in a Hilbert space. Manaka
Hongjie Liu   +2 more
doaj   +1 more source

Least Square Regularized Regression for Multitask Learning

open access: yesAbstract and Applied Analysis, 2013
The study of multitask learning algorithms is one of very important issues. This paper proposes a least-square regularized regression algorithm for multi-task learning with hypothesis space being the union of a sequence of Hilbert spaces.
Yong-Li Xu, Di-Rong Chen, Han-Xiong Li
doaj   +1 more source

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