Results 1 to 10 of about 31,021 (266)

On Fuzzy Co-Pre-Hilbert Spaces

open access: yes, 2013
This paper introduces the concepts fuzzy pre-Hilbert spaces and fuzzy co-pre-Hilbert spaces and proves some theorems in this subject.
Radhi, Intisar H., Al-Mayahi, Noori F.
core  

SPDE limits of the random walk Metropolis algorithm in high dimensions [PDF]

open access: yes, 2009
Diffusion limits of MCMC methods in high dimensions provide a useful theoretical tool for studying efficiency. In particular they facilitate precise estimates of the number of steps required to explore the target measure, in stationarity, as a ...
Mattingly, Jonathan C.   +2 more
core  

On singular Calogero-Moser spaces [PDF]

open access: yes, 2009
Using combinatorial properties of complex reflection groups, we show that the generalised Calogero-Moser space associated to the centre of the corresponding rational Cherednik algebra is singular for all values of its deformation parameter c if and only ...
Bellamy, G.
core   +1 more source

Some Reverses of the Jensen Inequality for Functions of Selfadjoint Operators in Hilbert Spaces

open access: yes, 2008
Some reverses of the Jensen inequality for functions of selfadjoint operators in Hilbert spaces under suitable assumptions for the involved operators are given.
Dragomir, Sever S
core  

Sesquilinear quantum stochastic analysis in Banach space [PDF]

open access: yes, 2014
A theory of quantum stochastic processes in Banach space is initiated. The processes considered here consist of Banach space valued sesquilinear maps.
Lindsay, Martin   +2 more
core  

Metric field as emergence of Hilbert space

open access: yesScientific Reports
First, we explain some ambiguities of spacetime and metric field as fundamental concepts. Then, from the Unruh effect point of view and using the Gelfand–Naimark–Segal construction, we construct an operator as a quanta of acceleration that we call ...
Maysam Yousefian, Mehrdad Farhoudi
doaj   +1 more source

Quantum Time Arrows, Semigroups and Time-Reversal in Scattering [PDF]

open access: yes, 2002
Two approaches toward the arrow of time for scattering processes have been proposed in rigged Hilbert space quantum mechanics. One, due to Arno Bohm, involves preparations and registrations in laboratory operations and results in two semigroups oriented ...
Bishop, Robert C
core  

Hilbert points in Hilbert space-valued $L^p$ spaces [PDF]

open access: yes, 2023
Let H be a Hilbert space and (Ω,F ,µ) a probability space. A Hilbert point in L p (Ω;H) is a nontrivial function ϕ such that ∥ϕ∥p ≤ ∥ϕ+f ∥p whenever ⟨f ,ϕ⟩ = 0.
Brevig, Ole Fredrik, Grepstad, Sigrid
core  

On bidual bases in the space of symmetric analytic functions on $ell_{1}$

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
We consider a special Hilbert space of symmetric analytic functions on$ell_1$ and construct a pair of bidual bases of polynomials.}{Hilbert space, symmetricanalytic functions, bidual ...
O. M. Holubchak, A. V. Zagorodnyuk
doaj  

Fixed Point and Acute Point Theorems for New Mappings in a Banach Space

open access: yesJournal of Mathematics, 2019
In a Hilbert space, concepts of attractive point and acute point are studied by many researchers. Moreover, these concepts extended to Banach space. In this paper, we introduce a new class of mappings on Banach space corresponding to the class of all ...
Toshiharu Kawasaki
doaj   +1 more source

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