Results 31 to 40 of about 4,792,820 (293)

Flows in Infinite-Dimensional Phase Space Equipped with a Finitely-Additive Invariant Measure

open access: yesMathematics, 2023
Finitely-additive measures invariant to the action of some groups on a separable infinitedimensional real Hilbert space are constructed. The invariantness of a measure is studied with respect to the group of shifts on a vector of Hilbert space, the ...
Vsevolod Zh. Sakbaev
doaj   +1 more source

Hilbert space representation of the minimal length uncertainty relation. [PDF]

open access: yesPhysical 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
semanticscholar   +1 more source

Reproducing Kernel Hilbert Space vs. Frame Estimates

open access: yesMathematics, 2015
We consider conditions on a given system F of vectors in Hilbert space H, forming a frame, which turn H into a reproducing kernel Hilbert space. It is assumed that the vectors in F are functions on some set Ω .
Palle E. T. Jorgensen, Myung-Sin Song
doaj   +1 more source

The Hilbert Space of Quantum Gravity Is Locally Finite-Dimensional [PDF]

open access: yes, 2017
We argue in a model-independent way that the Hilbert space of quantum gravity is locally finite-dimensional. In other words, the density operator describing the state corresponding to a small region of space, when such a notion makes sense, is defined on
N. Bao, S. Carroll, Ashmeet Singh
semanticscholar   +1 more source

The space of twisted cubics [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2021
We consider the Cohen-Macaulay compactification of the space of twisted cubics in projective n-space. This compactification is the fine moduli scheme representing the functor of CM-curves with Hilbert polynomial 3t+1. We show that the moduli scheme of CM-
Katharina Heinrich   +2 more
doaj   +1 more source

Shape Transformation Approaches for Fluid Dynamic Optimization

open access: yesAerospace, 2023
The contribution is devoted to combined shape- and mesh-update strategies for parameter-free (CAD-free) shape optimization methods. Three different strategies to translate the shape sensitivities computed by adjoint shape optimization procedures into ...
Peter Marvin Müller   +2 more
doaj   +1 more source

Learning an Invariant Hilbert Space for Domain Adaptation [PDF]

open access: yesComputer Vision and Pattern Recognition, 2016
This paper introduces a learning scheme to construct a Hilbert space (i.e., a vector space along its inner product) to address both unsupervised and semi-supervised domain adaptation problems.
Samitha Herath   +2 more
semanticscholar   +1 more source

Functional data analysis for density functions by transformation to a Hilbert space [PDF]

open access: yes, 2016
Functional data that are nonnegative and have a constrained integral can be considered as samples of one-dimensional density functions. Such data are ubiquitous.
Alexander Petersen, H. Muller
semanticscholar   +1 more source

Ergodicity probes: using time-fluctuations to measure the Hilbert space dimension [PDF]

open access: yesQuantum, 2019
Quantum devices, such as quantum simulators, quantum annealers, and quantum computers, may be exploited to solve problems beyond what is tractable with classical computers. This may be achieved as the Hilbert space available to perform such `calculations'
Charlie Nation, Diego Porras
doaj   +1 more source

Synthetic Hilbert Space Engineering of Molecular Qudits: Isotopologue Chemistry

open access: yesAdvances in Materials, 2019
One of the most ambitious technological goals is the development of devices working under the laws of quantum mechanics. Among others, an important challenge to be resolved on the way to such breakthrough technology concerns the scalability of the ...
W. Wernsdorfer, M. Ruben
semanticscholar   +1 more source

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