Results 21 to 30 of about 541,953 (330)

Coherent Upper Conditional Previsions Defined through Conditional Aggregation Operators

open access: yesMathematics, 2022
Conditional aggregation operators are introduced, and coherent upper conditional previsions are constructed by sub-additive, positively homogenous, and shift-invariant conditional aggregation operators. Composed operators defined by positively homogenous
Serena Doria
doaj   +1 more source

A New Kind of Shift Operators for Infinite Circular and Spherical Wells

open access: yesAdvances in Mathematical Physics, 2014
A new kind of shift operators for infinite circular and spherical wells is identified. These shift operators depend on all spatial variables of quantum systems and connect some eigenstates of confined systems of different radii R sharing energy levels ...
Guo-Hua Sun   +4 more
doaj   +1 more source

High Order Riesz Transforms and Mean Value Formula for Generalized Translate Operator [PDF]

open access: yes, 2013
In this paper, the mean value formula depends on the Bessel generalized shift operator corresponding to the solutions of the boundary value problem related to the Bessel operator are studied.
Ekincioglu, I., Keskin, C., Sayan, H. H.
core   +2 more sources

HYPERCYCLIC OPERATOR WEIGHTED SHIFTS

open access: yesBulletin of the Korean Mathematical Society, 2004
A bounded linear operator \(T\) on a Hilbert space \(H\) is said to be hypercyclic if, for some \(x \in H\), the orbit \(\{T^{n}x : n=0,1,2,\dots \}\) is dense in \(H\). In the paper under review, the authors give a characterization for hypercyclicity of a bilateral operator weighted shift \(T\) on the Hilbert space \(L^{2}(K)\).
Hazarika, Munmun, Arora, S. C.
openaire   +3 more sources

Design of Packet-Based Block Codes with Shift Operators

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
This paper introduces packet-oriented block codes for the recovery of lost packets and the correction of an erroneous single packet. Specifically, a family of systematic codes is proposed, based on a Vandermonde matrix applied to a group of k information
Jacek Ilow, Ali Al-Shaikhi
doaj   +2 more sources

Image Processing Operators Based on the Gyrator Transform: Generalized Shift, Convolution and Correlation

open access: yesPhotonics, 2019
The gyrator transform (GT) is used for images processing in applications of light propagation. We propose new image processing operators based on the GT, these operators are: Generalized shift, convolution and correlation.
Ronal A. Perez   +2 more
doaj   +1 more source

Shift operators from the simplex representation in momentum-space CFT

open access: yesJournal of High Energy Physics, 2023
We derive parametric integral representations for the general n-point function of scalar operators in momentum-space conformal field theory. Recently, this was shown to be expressible as a generalised Feynman integral with the topology of an (n − 1 ...
Francesca Caloro, Paul McFadden
doaj   +1 more source

Urban Rail Train Scheduling With Smoothing Energy Consumption Peaks and Synchronization Time Minimization: Using Novel Time-Shift Control Scheme

open access: yesIEEE Access, 2021
Considering operators of the urban rail transit systems are often faced with cost control, passengers required high service quality, which has inter-affection between each other in congestion issues for the peak period.
Jin Zhou, Xin Guo, Feng Li
doaj   +1 more source

Scattering matrices and Weyl functions [PDF]

open access: yes, 2006
For a scattering system $\{A_\Theta,A_0\}$ consisting of selfadjoint extensions $A_\Theta$ and $A_0$ of a symmetric operator $A$ with finite deficiency indices, the scattering matrix $\{S_\gT(\gl)\}$ and a spectral shift function $\xi_\Theta$ are ...
Behrndt, Jussi   +2 more
core   +5 more sources

Composite pairing in a mixed valent two channel Anderson model [PDF]

open access: yes, 1992
Using a two-channel Anderson model, we develop a theory of composite pairing in the 115 family of heavy fermion superconductors that incorporates the effects of f-electron valence fluctuations.
Flint, Rebecca   +2 more
core   +5 more sources

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