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    Wyświetlanie 1-13 z 13
    Tytuł:
    Boundary Value Problems for Differential Equations with Fractional Order and Nonlinear Integral Conditions
    Autorzy:
    Benchohra, Mouffak
    Hamani, Samira
    Powiązania:
    https://bibliotekanauki.pl/articles/746522.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Matematyczne
    Tematy:
    boundary value problem
    Caputo fractional derivative
    fractional integral
    existence
    uniqueness
    fixed point
    integral conditions
    Opis:
    In this paper, we shall establish sufficient conditions for the existence of solutions for a class of boundary value problem for fractional differential equations involving the Caputo fractional derivative and nonlinear integral conditions.
    Źródło:
    Commentationes Mathematicae; 2009, 49, 2
    0373-8299
    Pojawia się w:
    Commentationes Mathematicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The method of upper and lower solutions for partial hyperbolic fractional order differential inclusions with impulses
    Autorzy:
    Abbas, Saïd
    Benchohra, Mouffak
    Powiązania:
    https://bibliotekanauki.pl/articles/729279.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
    Tematy:
    impulsive hyperbolic differential inclusion
    fractional order
    upper solution
    lower solution
    left-sided mixed Riemann-Liouville integral
    Caputo fractional-order derivative
    fixed point
    Opis:
    In this paper we use the upper and lower solutions method to investigate the existence of solutions of a class of impulsive partial hyperbolic differential inclusions at fixed moments of impulse involving the Caputo fractional derivative. These results are obtained upon suitable fixed point theorems.
    Źródło:
    Discussiones Mathematicae, Differential Inclusions, Control and Optimization; 2010, 30, 1; 141-161
    1509-9407
    Pojawia się w:
    Discussiones Mathematicae, Differential Inclusions, Control and Optimization
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The wave transformer – analysis and application of time digital filters and the integral-derivative operators of ½ order
    Autorzy:
    Siwczyński, M.
    Drwal, A.
    Żaba, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/141515.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    wave transformer
    integral-derivative operators of fractional order
    convolution operators
    time domain
    digital filters
    Opis:
    In this paper the way of modeling phenomena occurring during the voltage and current waves passing through a point connection of two lines, with different wave impedance operators, is presented. This connection point is called „the wave transformer”. The analyzes and the resulting formulas concern not the frequency domain, but the time domain. The appropriate transition matrices of waves through the wave transformer are defined. This matrices are the convolution integral-derivative operators of fractional order (the digital filters). For a lossless line the wave transition matrices through the wave transformer become number type instead of operator type. All matrix multiplications occurring in the formulas should be understood in convolution way.
    Źródło:
    Archives of Electrical Engineering; 2013, 62, 3; 497-504
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Some new existence results and stability concepts for fractional partial random differential equations
    Autorzy:
    Abbas, S.
    Benchohra, M.
    Darwish, M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/357770.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
    Tematy:
    random differential equations
    left-sided mixed Riemann-Liouville integral
    Caputo fractional-order derivative
    Banach space
    Darboux problem
    Ulam stability
    równanie różniczkowe
    pochodna Caputo
    przestrzeń Banacha
    problem Darbouxa
    Opis:
    In the present paper we provide some existence results and Ulam’s type stability concepts for the Darboux problem of partial fractional random differential equations in Banach spaces, by applying the measure of noncompactness and a random fixed point theorem with stochastic domain.
    Źródło:
    Journal of Mathematics and Applications; 2016, 39; 5-22
    1733-6775
    2300-9926
    Pojawia się w:
    Journal of Mathematics and Applications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Upper and lower solutions method for partial discontinuous fractional differential inclusions with not instantaneous impulses
    Autorzy:
    Abbas, Saïd
    Benchohra, Mouffak
    Abdalla Darwish, Mohamed
    Powiązania:
    https://bibliotekanauki.pl/articles/729578.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
    Tematy:
    fractional differential inclusion
    left-sided mixed Riemann-Liouville integral
    Caputo fractional order derivative
    upper solution
    lower solution
    extremal solution
    fixed point
    Banach algebras
    not instantaneous impulses
    Opis:
    In this paper, we use the upper and lower solutions method combined with a fixed point theorem for multivalued maps in Banach algebras due to Dhage for investigations of the existence of solutions of a class of discontinuous partial differential inclusions with not instantaneous impulses. Also, we study the existence of extremal solutions under Lipschitz, Carath´eodory and certain monotonicity conditions
    Źródło:
    Discussiones Mathematicae, Differential Inclusions, Control and Optimization; 2016, 36, 2; 155-179
    1509-9407
    Pojawia się w:
    Discussiones Mathematicae, Differential Inclusions, Control and Optimization
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Existence and stability analysis of nonlinear sequential coupled system of Caputo fractional differential equations with integral boundary conditions
    Autorzy:
    Zada, Akbar
    Yar, Muhammad
    Li, Tongxing
    Powiązania:
    https://bibliotekanauki.pl/articles/744661.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
    Tematy:
    Caputo fractional derivative
    Riemann–Liouville fractional integral
    coupled system
    existence
    uniqueness
    fixed point theorem
    Hyers–Ulam stability
    Źródło:
    Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica; 2018, 17
    2300-133X
    Pojawia się w:
    Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Positive solution of a fractional differential equation with integral boundary conditions
    Autorzy:
    Abdo, M. S.
    Wahash, H. A.
    Panchal, S. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/122788.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    fractional derivative and integral
    positive solutions of nonlinear boundary value problems
    upper and lower solutions
    fixed point theorem
    pochodna ułamkowa
    twierdzenie o punkcie stałym
    twierdzenia o punkcie stałym Schaudera
    równania różniczkowe cząstkowe
    nieliniowe cząstkowe równanie różniczkowe
    zagadnienie brzegowe
    Opis:
    In this paper, we prove the existence and uniqueness of a positive solution for a boundary value problem of nonlinear fractional differential equations involving a Caputo fractional operator with integral boundary conditions. The technique used to prove our results depends on the upper and lower solution, the Schauder fixed point theorem and the Banach contraction principle. The result of existence obtained through constructing the upper and lower control functions of the nonlinear term without any monotone requirement.
    Źródło:
    Journal of Applied Mathematics and Computational Mechanics; 2018, 17, 3; 5-15
    2299-9965
    Pojawia się w:
    Journal of Applied Mathematics and Computational Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analytical and numerical study for a fractional boundary value problem with a conformable fractional derivative of Caputo and its fractional integral
    Autorzy:
    Bekkouche, M. Moumen
    Guebbai, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1839786.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    fractional boundary value problem
    Volterra-Fredholm integral equation
    fractional derivative
    fractional integral
    równanie całkowe Volterry-Fredholma
    ułamkowa wartość brzegowa
    pochodna ułamkowa Caputo
    Opis:
    We study the existence and uniqueness of the solution of a fractional boundary value problem with conformable fractional derivation of the Caputo type, which increases the interest of this study. In order to study this problem we have introduced a new definition of fractional integral as an inverse of the conformable fractional derivative of Caputo, therefore, the proofs are based upon the reduction of the problem to a equivalent linear Volterra-Fredholm integral equations of the second kind, and we have built the minimum conditions to obtain the existence and uniqueness of this solution. The analytical study is followed by a complete numerical study.
    Źródło:
    Journal of Applied Mathematics and Computational Mechanics; 2020, 19, 2; 31-42
    2299-9965
    Pojawia się w:
    Journal of Applied Mathematics and Computational Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of fractional order theory of thermoelasticity in an elliptical disk and associated thermal stresses
    Autorzy:
    Thakare, S.
    Panke, Y.
    Hadke, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1839826.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    naprężenia termiczne
    pochodna Caputo
    termosprężystość
    elliptical disk
    fractional order theory
    Caputo derivative
    integral transform
    thermal stresses
    thermal deflection
    Opis:
    In this article, a time fractional-order theory of thermoelasticity is applied to an isotropic homogeneous elliptical disk. The lower and upper surfaces of the disk are maintained at zero temperature, whereas the sectional heat supply is applied on the outer curved surface. Thermal deflection and associated thermal stresses are obtained in terms of Mathieu function of the first kind of order 2n. Numerical evaluation is carried out for the temperature distribution, Thermal deflection and thermal stresses and results of the resulting quantities are depicted graphically.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2020, 25, 3; 169-180
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Existence and Ulam-Hyers stability of the implicit fractional boundary value problem with ψ-Caputo fractional derivative
    Autorzy:
    Wahash, Hanan A.
    Abdo, Mohammed S
    Panchal, Satish K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1839794.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    fractional differential equations
    ψ-fractional integral and derivative
    existence and Ulam-Hyers stability
    fixed point theorem
    równania różniczkowe ułamkowe
    równania różniczkowe cząstkowe
    pochodna ułamkowa
    twierdzenie o punkcie stałym
    pochodna ułamkowa Caputo
    Opis:
    In this paper, we investigate the existence, uniqueness and Ulam-Hyers stability of solutions for nonlinear implicit fractional differential equations with boundary conditions involving a ψ-Caputo fractional derivative. The obtained results for the proposed problem are proved under a new approach and minimal assumptions on the function ƒ. The analysis is based upon the reduction of the problem considered to the equivalent integral equation, while some fixed point theorems of Banach and Schauder and generalized Gronwall inequality are employed to obtain our results for the problem at hand. Finally, the investigation is illustrated by providing a suitable example.
    Źródło:
    Journal of Applied Mathematics and Computational Mechanics; 2020, 19, 1; 89-101
    2299-9965
    Pojawia się w:
    Journal of Applied Mathematics and Computational Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Existence and Ulam-Hyers stability of the implicit fractional boundary value problem with ψ-Caputo fractional derivative
    Autorzy:
    Wahash, Hanan A.
    Abdo, Mohammed S
    Panchal, Satish K.
    Powiązania:
    https://bibliotekanauki.pl/articles/122800.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    fractional differential equations
    ψ-fractional integral and derivative
    existence and Ulam-Hyers stability
    fixed point theorem
    równania różniczkowe ułamkowe
    równania różniczkowe cząstkowe
    pochodna ułamkowa
    twierdzenie o punkcie stałym
    pochodna ułamkowa Caputo
    Opis:
    In this paper, we investigate the existence, uniqueness and Ulam-Hyers stability of solutions for nonlinear implicit fractional differential equations with boundary conditions involving a ψ-Caputo fractional derivative. The obtained results for the proposed problem are proved under a new approach and minimal assumptions on the function ƒ . The analysis is based upon the reduction of the problem considered to the equivalent integral equation, while some fixed point theorems of Banach and Schauder and generalized Gronwall inequality are employed to obtain our results for the problem at hand. Finally, the investigation is illustrated by providing a suitable example.
    Źródło:
    Journal of Applied Mathematics and Computational Mechanics; 2020, 19, 1; 89-101
    2299-9965
    Pojawia się w:
    Journal of Applied Mathematics and Computational Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fractional Integral Approximation and Caputo Derivatives with Modification of Trapezoidal Rule
    Autorzy:
    Pandiangan, Naomi
    Johar, Dwindi
    Purwani, Sri
    Powiązania:
    https://bibliotekanauki.pl/articles/1193326.pdf
    Data publikacji:
    2021
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Caputo fractional derivative
    Fractional integral
    Modified trapezoidal rule
    Rieman Liouville fractional integral
    Opis:
    In classical calculus, a function can be derived or integrated as many as natural numbers. Then a question arises regarding the fractional order of derivatives and integrals. There is a development of classical calculus called fractional calculus. Fractional calculus may be a department of science that amplifies the orders of derivatives and integrals into the order of rational numbers or even real numbers. The difficulty of finding solutions analytically for a complicated function of fractional integrals or fractional derivatives often occurs. In this paper, we will solve Rieman Liouville's fractional integral and Caputo's fractional derivative analytically using the trapezoidal rule modification method. Trapezoidal method is an approximation method that is resulted from the linear interpolation function. In this paper, we will find numerical simulations with modified trapezoidal method, to estimate some functions, and the results will be compared with previous research related to the Rieman Liouville fractional integral approximation and the Caputo fractional derivative. The result from simulation find that modified trapezoidal can approximate Caputo fractional derivative by replace α with -α and Quadratic schemes method is the best method to approximate Rieman Liouville fractional integral and Caputo fractional derivative.
    Źródło:
    World Scientific News; 2021, 153, 2; 169-180
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On theoretical and practical aspects of Duhamel’s integral
    Autorzy:
    Różański, Michał
    Sikora, Beata
    Smuda, Adrian
    Wituła, Roman
    Powiązania:
    https://bibliotekanauki.pl/articles/2083463.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Duhamel’s integral
    Duhamel’s principle
    Duhamel’s formula
    Laplace transformation
    semigroup of operators
    Leibniz integral rule
    Volterra integral equation
    Caputo fractional derivative
    Opis:
    The paper is a new approach to the Duhamel integral. It contains an overview of formulas and applications of Duhamel’s integral as well as a number of new results on the Duhamel integral and principle. Basic definitions are recalled and formulas for Duhamel’s integral are derived via Laplace transformation and Leibniz integral rule. Applications of Duhamel’s integral for solving certain types of differential and integral equations are presented. Moreover, an interpretation of Duhamel’s formula in the theory of operator semigroups is given. Some applications of Duhamel’s formula in control systems analysis are discussed. The work is also devoted to the usage of Duhamel’s integral for differential equations with fractional order derivative.
    Źródło:
    Archives of Control Sciences; 2021, 31, 4; 815-847
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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