Results 11 to 20 of about 44,629 (263)

On the shift operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
The purpose of this paper is to show that the weighted s-shift operators and so the weighted shift and the right shift operators have the SVEP, but the left shift operator has not.
M. M. Aggour
doaj   +2 more sources

Shifting Operators in Geometric Quantization [PDF]

open access: yesAxioms, 2020
The original Bohr-Sommerfeld theory of quantization did not give operators of transitions between quantum quantum states. This paper derives these operators, using the first principles of geometric quantization.
Cushman, Richard, Śniatycki, Jędrzej
openaire   +4 more sources

On the Fractionalization of the Shift Operator on Graphs [PDF]

open access: yesIEEE Access, 2022
The theory of graph signal processing has been established with the purpose of generalizing tools from classical digital signal processing to the cases where the signal domain can be modeled by an arbitrary graph. In this context, the present paper introduces the notion of fractional shift of signals on graphs, which is related to considering a non ...
Guilherme B. Ribeiro   +2 more
openaire   +3 more sources

Diagonalization of shift-preserving operators [PDF]

open access: yesAdvances in Mathematics, 2021
27 pages.
Aguilera Aguilera, Alejandra Patricia   +3 more
openaire   +4 more sources

On Determinants of Integrable Operators with Shifts [PDF]

open access: yesInternational Mathematics Research Notices, 2013
Integrable integral operator can be studied by means of a matrix Riemann--Hilbert problem. However, in the case of so-called integrable operators with shifts, the associated Riemann--Hilbert problem becomes operator valued and this complicates strongly the analysis.
Its, A. R., Kozlowski, K. K.
openaire   +2 more sources

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

Non-archimedean shift operators [PDF]

open access: yesP-Adic Numbers, Ultrametric Analysis, and Applications, 2010
We introduce and study non-Archimedean analogs of the operators of unilateral shift and backward shift playing crucial roles in the classical theory of nonselfadjoint operators. In particular, we find various functional models of these operators having both common and different features compared to their classical counterparts.
openaire   +3 more sources

AdS weight shifting operators [PDF]

open access: yesJournal of High Energy Physics, 2018
AbstractWe construct a new class of differential operators that naturally act on AdS harmonic functions. These are weight shifting operators that change the spin and dimension of AdS representations. Together with CFT weight shifting operators, the new operators obey crossing equations that relate distinct representations of the conformal group.
Costa, Miguel S., Hansen, Tobias
openaire   +5 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 ...
Ilow Jacek, Al-Shaikhi Ali
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

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