We consider one-dimensional chain of coupled linear and nonlinear oscillators with long-range powerwise interaction defined by a term proportional to 1/jn Γ mj a+1 . Continuous medium equation for this system can be obtained in the socalled infrared limit when the wave number tends to zero. We const
Fractional dynamics of systems with long-range space interaction and temporal memory
β Scribed by Vasily E. Tarasov; George M. Zaslavsky
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 237 KB
- Volume
- 383
- Category
- Article
- ISSN
- 0378-4371
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β¦ Synopsis
Field equations with time and coordinate derivatives of noninteger order are derived from a stationary action principle for the cases of power-law memory function and long-range interaction in systems. The method is applied to obtain a fractional generalization of the Ginzburg-Landau and nonlinear Schro¨dinger equations. As another example, dynamical equations for particle chains with power-law interaction and memory are considered in the continuous limit. The obtained fractional equations can be applied to complex media with/without random parameters or processes.
π SIMILAR VOLUMES
We review simple aspects of the thermodynamic and dynamical properties of systems with long-range pairwise interactions (LRI), which decay as 1/r d+Ο at large distances r in d dimensions. Two broad classes of such systems are discussed. (i) Systems with a slow decay of the interactions, termed ''str
Using the fact that extremum of variation of generalized action can lead to the fractional dynamics in the case of systems with long-range interaction and long-term memory function, we consider two different applications of the action principle: generalized Noether's theorem and Hamiltonian type equ