Results 21 to 30 of about 456,275 (318)

Fractional free space, fractional lenses, and fractional imaging systems [PDF]

open access: yesJournal of the Optical Society of America A, 2003
Continuum extensions of common dual pairs of operators are presented and consolidated, based on the fractional Fourier transform. In particular, the fractional chirp multiplication, fractional chirp convolution, and fractional scaling operators are defined and expressed in terms of their common nonfractional special cases, revealing precisely how they ...
Sümbül, U., Ozaktas, H., M.
openaire   +3 more sources

On The Solution of Certain Fractional Integral Equations [PDF]

open access: yesKirkuk Journal of Science, 2006
In this paper we introduce the linear operator of fractional integral equation of the second kind (FIESK) in the framework of the Riemann-Liouville fractional calculus.
Suha N. Al-Rawi
doaj   +1 more source

A fractional calculus on arbitrary time scales: Fractional differentiation and fractional integration [PDF]

open access: yesSignal Processing, 2015
We introduce a general notion of fractional (noninteger) derivative for functions defined on arbitrary time scales. The basic tools for the time-scale fractional calculus (fractional differentiation and fractional integration) are then developed. As particular cases, one obtains the usual time-scale Hilger derivative when the order of differentiation ...
Nadia Benkhettou   +2 more
openaire   +3 more sources

Application of the Lagrange-Sylvester formula to computation of the solution to state equations of fractional linear systems [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
The Lagrange-Sylvester formula is applied to the computation of the solutions of state equations of fractional continuous-time and discrete-time linear systems.
Tadeusz Kaczorek
doaj   +1 more source

FRACTIONAL DERIVATIVE AS FRACTIONAL POWER OF DERIVATIVE [PDF]

open access: yesInternational Journal of Mathematics, 2007
Definitions of fractional derivatives as fractional powers of derivative operators are suggested. The Taylor series and Fourier series are used to define fractional power of selfadjoint derivative operator. The Fourier integrals and Weyl quantization procedure are applied to derive the definition of fractional derivative operator.
openaire   +2 more sources

Radar matched filtering using the fractional fourier transform [PDF]

open access: yes, 2010
-A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the presence of additive noise. Matched filters are commonly used in radar systems where the transmitted signal is known and may be used as a replica to be ...
Clemente, Carmine   +5 more
core   +1 more source

Coherence fraction

open access: yesQuantum Information Processing, 2019
The concept of entanglement fraction is generalized to define coherence fraction of a quantum state. Precisely, it quantifies the proximity of a quantum state to maximally coherent state and it can be used as a measure of coherence. Coherence fraction has a connection with $l_1$-norm coherence and provides the criteria of coherence distillability ...
Sumana Karmakar   +4 more
openaire   +2 more sources

Some q-Fractional Estimates of Trapezoid like Inequalities Involving Raina’s Function

open access: yesFractal and Fractional, 2022
In this paper, we derive two new identities involving q-Riemann-Liouville fractional integrals. Using these identities, as auxiliary results, we derive some new q-fractional estimates of trapezoidal-like inequalities, essentially using the class of ...
Kamsing Nonlaopon   +4 more
doaj   +1 more source

A new extension of the Cayley-Hamilton theorem to fractional different orders linear systems [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
The classical Cayley–Hamilton theorem is extended to fractional different order linear systems. The new theorems are applied to different orders fractional linear electrical circuits. The applications of new theorems are illustrated by numerical examples.
Tadeusz Kaczorek
doaj   +1 more source

High-Performance Identification and Control of MIMO (Multiple Input—Multiple Output) Experimental Module with Fractional-Order Approach Application

open access: yesFractal and Fractional
This paper focuses on the application of fractional calculus techniques in the identification and control of multivariable (multiple input—multiple output) systems (MIMO).
Alexandre Marques de Almeida   +4 more
doaj   +1 more source

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