نتایج جستجو برای: fractional order bernoulli functions

تعداد نتایج: 1394542  

Journal: :bulletin of the iranian mathematical society 0
s. irandoust-pakchin department of applied mathematics‎, ‎faculty of mathematical sciences, university of tabriz‎, ‎tabriz‎, ‎iran. m. lakestani department of applied mathematics‎, ‎faculty of mathematical sciences, university of tabriz‎, ‎tabriz‎, ‎iran. h. ‎kheiri department of applied mathematics‎, ‎faculty of mathematical sciences, university of tabriz‎, ‎tabriz‎, ‎iran.

‎it is commonly accepted that fractional differential equations play‎ ‎an important role in the explanation of many physical phenomena‎. ‎for‎ ‎this reason we need a reliable and efficient technique for the‎ ‎solution of fractional differential equations‎. ‎this paper deals with‎ ‎the numerical solution of a class of fractional differential‎ ‎equation‎. ‎the fractional derivatives are described...

ژورنال: محاسبات نرم 2013

In this paper a new method for speed control of BLDC motors is proposed. In this method, fractional order PID (FOPID) is used for control of BLDC motor. In order to determine the parameters of FOPID controller imperialist competitive algorithm (ICA) is employed for its high speed and accurate for solve of optimization problems. In order to verify the performance of proposed controller, some sim...

2004
GABRIELLA BRETTI PIERPAOLO NATALINI PAOLO E. RICCI

We first introduce a generalization of the Bernoulli polynomials, and consequently of the Bernoulli numbers, starting from suitable generating functions related to a class of Mittag-Leffler functions. Furthermore, multidimensional extensions of the Bernoulli and Appell polynomials are derived generalizing the relevant generating functions, and using the Hermite-Kampé de Fériet (or Gould-Hopper)...

Journal: :Journal of Approximation Theory 2011
Luis M. Navas Francisco J. Ruiz Juan Luis Varona

Hurwitz found the Fourier expansion of the Bernoulli polynomials over a century ago. In general, Fourier analysis can be fruitfully employed to obtain properties of the Bernoulli polynomials and related functions in a simple manner. In addition, applying the technique of Möbius inversion from analytic number theory to Fourier expansions, we derive identities involving Bernoulli polynomials, Ber...

Journal: :Nonlinear Engineering 2023

Abstract In this research, a compact combination of Chebyshev polynomials is created and used as spatial basis for the time fractional fourth-order Euler–Bernoulli pinned–pinned beam. The method based on applying Petrov–Galerkin procedure to discretize differential problem into system linear algebraic equations with unknown expansion coefficients. Using efficient Gaussian elimination procedure,...

Journal: :journal of computational applied mechanics 0
mohammad zakeri school of civil engineering, college of engineering, university of tehran, tehran p.o. box 11365-4563, iran. reza attarnejad school of civil engineering, college of engineering, university of tehran, tehran, iran amir mohsen ershadbakhsh school of civil engineering, college of engineering, university of tehran, tehran, iran

the accuracy and efficiency of the elements proposed by finite element method (fem) considerably depend on the interpolating functions namely shape functions used to formulate the displacement field within the element. in the present study, novel functions, namely basic displacements functions (bdfs), are introduced and exploited for structural analysis of nanobeams using finite element method ...

2002
OLIVIER ESPINOSA

We establish a series of indefinite integral formulae involving the Hurwitz zeta function and other elementary and special functions related to it, such as the Bernoulli polynomials, ln sin(πq), ln (q) and the polygamma functions. Many of the results are most conveniently formulated in terms of a family of functions Ak (q) := kζ ′(1−k, q), k ∈ N, and a family of polygamma functions of negative ...

2001
VICTOR H. MOLL

Abstract. We establish a series of indefinite integral formulae involving the Hurwitz zeta function and other elementary and special functions related to it, such as the Bernoulli polynomials, ln sin(πq), ln Γ(q) and the polygamma functions. Many of the results are most conveniently formulated in terms of a family of functions Ak(q) := kζ (1 − k, q), k ∈ N, and a family of polygamma functions o...

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