نتایج جستجو برای: fractional model

تعداد نتایج: 2154119  

2006
Vasily E. Tarasov

Integrals and derivatives of fractional order have found many applications in recent studies in science. The interest in fractals and fractional analysis has been growing continually in the last few years. Fractional derivatives and integrals have numerous applications: kinetic theories [1, 2, 3]; statistical mechanics [4, 5, 6]; dynamics in complex media [7, 8, 9, 10, 11]; electrodynamics [12,...

Journal: :computational methods for differential equations 0
abdol ali neamaty department of mathematics, university of mazandaran, babolsar, iran bahram agheli department of mathematics, university of mazandaran, babolsar, iran mohammad adabitabar department of mathematics, qaemshahr branch, islamic azad university, qaemshahr, iran

approximating the solution of differential equations of fractional order is necessary because fractional differential equations have extensively been used in physics, chemistry as well as engineering fields. in this paper with central difference approximation and newton cots integration formula, we have found approximate solution for a class of boundary value problems of fractional order. three...

Journal: :iranian journal of numerical analysis and optimization 0
hadi rezazadeh hossein aminikhah amir hossein refahi sheikhani

‎ in this paper, we investigate stability analysis of fractional differential systems equipped with the conformable fractional derivatives. some stability conditions of fractional differential systems are proposed by applying the fractional exponential function and the fractional laplace transform. moreover, we check the stability of conformable fractional lotka-volterra system with the multi-st...

Journal: :Proceedings. Mathematical, physical, and engineering sciences 2015
T M Atanackovic M Janev Lj Oparnica S Pilipovic D Zorica

The space-time fractional Zener wave equation, describing viscoelastic materials obeying the time-fractional Zener model and the space-fractional strain measure, is derived and analysed. This model includes waves with finite speed, as well as non-propagating disturbances. The existence and the uniqueness of the solution to the generalized Cauchy problem are proved. Special cases are investigate...

Journal: :J. Applied Probability 2013
Holger Fink

Molchan-Golosov fractional Lévy processes (MG-fLps) are introduced by a multivariate componentwise Molchan-Golosov transformation based on an n-dimensional driving Lévy process. Using results of fractional calculus and infinitely divisible distributions we are able to calculate the conditional characteristic function of integrals driven by MG-fLps. This leads to important prediction results inc...

2010
Holger Fink

Fractional convoluted Lévy processes (fcLps) are introduced by a multivariate componentwise Molchan-Gosolov transformation based on an n-dimensional driving Lévy process. Using results of fractional calculus and infinitely divisible distributions we are able to calculate the conditional characteristic function of integrals driven by fcLps. This leads to important prediction results including th...

2011
Michailas Romanovas Ahmed Al-Jawad Lasse Klingbeil Martin Traechtler Yiannos Manoli

The paper deals with implicit and explicit approaches for fractional nonlinear model order estimation using a benchmark model relating applied angular rate and neuron’s firing intensity within the vestibular system. The implicit approach is based on an interacting multiple models scheme, where several extended Kalman filters with fixed fractional order nonlinear models are running in parallel. ...

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