Results 1 to 10 of about 39,068 (265)

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

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   +3 more sources

Spectral properties of certain operators on the free Hilbert space \mathfrak{F}[H_{1},...,H_{N}] and the semicircular law [PDF]

open access: yesOpuscula Mathematica, 2021
In this paper, we fix \(N\)-many \(l^2\)-Hilbert spaces \(H_k\) whose dimensions are \(n_{k} \in \mathbb{N}^{\infty}=\mathbb{N} \cup \{\infty\}\), for \(k=1,\ldots,N\), for \(N \in \mathbb{N}\setminus\{1\}\).
Ilwoo Cho
doaj   +1 more source

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.
Richard Cushman, Jędrzej Śniatycki
openaire   +3 more sources

Certain Properties and Characterizations of Multivariable Hermite-Based Appell Polynomials via Factorization Method

open access: yesFractal and Fractional, 2023
This paper introduces a new type of polynomials generated through the convolution of generalized multivariable Hermite polynomials and Appell polynomials.
Mohra Zayed   +2 more
doaj   +1 more source

Some Families of Differential Equations Associated with Multivariate Hermite Polynomials

open access: yesFractal and Fractional, 2023
In this article, the recurrence relations and shift operators for multivariate Hermite polynomials are derived using the factorization approach. Families of differential equations, including differential, integro–differential, and partial differential ...
Badr Saad T. Alkahtani   +2 more
doaj   +1 more source

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   +2 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

Common diskcyclic vectors

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2021
In this paper, we study the common diskcyclic vectors for a path of diskcyclic operators. In particular, if  is a path of diskcyclic operators, we show that under certain conditions the intersection of diskcyclic vectors for theses operators is a dense ...
Nareen Bamerni
doaj   +1 more source

Otologic symptoms and hearing thresholds among a cohort of call center operators in Lagos

open access: yesThe Egyptian Journal of Otolaryngology, 2022
Background The call center operation jobs are becoming a global phenomenon. The use of headphones for 7 to 9 h daily with varying noise level exposure is quite common among call center operators. This can cause structural and/or functional changes in the
Derek O. O. Olagbemi   +3 more
doaj   +1 more source

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