Results 1 to 10 of about 434,529 (182)

Toward New Assessment in Sarcoma Identification and Grading Using Artificial Intelligence Techniques [PDF]

open access: yesDiagnostics
Background/Objectives: Sarcomas are a rare and heterogeneous group of malignant tumors, which makes early detection and grading particularly challenging.
Arnar Evgení Gunnarsson   +5 more
doaj   +2 more sources

Approximation by matrix transform in generalized grand Lebesgue spaces with variable exponent

open access: yesJournal of Numerical Analysis and Approximation Theory, 2021
In this work the Lipschitz subclass of the generalized grand Lebesgue space with variable exponent is defined and the error of approximation by matrix transforms in this subclass is estimated.
Ahmet Testici, Daniyal Israfilov
doaj   +7 more sources

Matrix Summability of Walsh–Fourier Series

open access: yesMathematics, 2022
The presented paper discusses the matrix summability of the Walsh–Fourier series. In particular, we discuss the convergence of matrix transforms in L1 space and in CW space in terms of modulus of continuity and matrix transform variation.
Ushangi Goginava, Károly Nagy
doaj   +1 more source

Computation of Fourier transform representations involving the generalized Bessel matrix polynomials

open access: yesAdvances in Difference Equations, 2021
Motivated by the recent studies and developments of the integral transforms with various special matrix functions, including the matrix orthogonal polynomials as kernels, in this article we derive the formulas for Fourier cosine and sine transforms of ...
M. Abdalla, M. Akel
doaj   +1 more source

On Hankel transforms of generalized Bessel matrix polynomials

open access: yesAIMS Mathematics, 2021
The present article deals with the evaluation of the Hankel transforms involving Bessel matrix functions in the kernel. Moreover, these transforms are associated with products of certain elementary functions and generalized Bessel matrix polynomials.
Mohamed Abdalla
doaj   +1 more source

New Orthogonal Transforms for Signal and Image Processing

open access: yesApplied Sciences, 2021
In the paper, orthogonal transforms based on proposed symmetric, orthogonal matrices are created. These transforms can be considered as generalized Walsh–Hadamard Transforms.
Andrzej Dziech
doaj   +1 more source

On Behavior Laplace Integral Operators with Generalized Bessel Matrix Polynomials and Related Functions

open access: yesJournal of Function Spaces, 2021
Recently, the applications and importance of integral transforms (or operators) with special functions and polynomials have received more attention in various fields like fractional analysis, survival analysis, physics, statistics, and engendering.
Muajebah Hidan   +3 more
doaj   +1 more source

Complex and Hypercomplex Discrete Fourier Transforms Based on Matrix Exponential Form of Euler's Formula [PDF]

open access: yes, 2011
We show that the discrete complex, and numerous hypercomplex, Fourier transforms defined and used so far by a number of researchers can be unified into a single framework based on a matrix exponential version of Euler's formula $e^{j\theta}=\cos\theta+j ...
Ell, Todd A., Sangwine, Stephen J.
core   +2 more sources

Matrix Shanks Transformations

open access: yesThe Electronic Journal of Linear Algebra, 2019
Shanks' transformation is a well know sequence transformation for accelerating the convergence of scalar sequences. It has been extended to the case of sequences of vectors and sequences of square matrices satisfying a linear difference equation with scalar coefficients.
Brezinski, Claude   +1 more
openaire   +2 more sources

Analytical Properties of the Generalized Heat Matrix Polynomials Associated with Fractional Calculus

open access: yesJournal of Function Spaces, 2021
In this paper, we introduce a matrix version of the generalized heat polynomials. Some analytic properties of the generalized heat matrix polynomials are obtained including generating matrix functions, finite sums, and Laplace integral transforms.
Mohamed Abdalla, Salah Mahmoud Boulaaras
doaj   +1 more source

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