fractional calculusとは 意味・読み方・使い方

名詞

fractional calculus (countable and uncountable, plural fractional calculi)

1. (mathematical analysis, uncountable) The branch of mathematics that studies generalisations of calculus to allow noninteger (i.e., real or complex) powers of the differentiation operator D and the integration operator J; (countable) any one of said generalisations of calculus.
   • 2000, Carl F. Lorenzo, Tom T. Hartley, Initialized Fractional Calculus, NASA, NASA/TP—2000-209943, page 12,

     The paper presents the definition sets required for initialized fractional calculi. Two underlying bases have been used, the Riemann-Liouville based fractional calculus and the Grünwald based functional calculus (by reference).

   • 2007, J. Sabatier, O. P. Agrawal, J. A. Tenreiro Machado, editors, Advances in Fractional Calculus, Springer, page xii:

     One of the major advantages of fractional calculus is that it can be considered as a superset of integer-order calculus. Thus fractional calculus has the potential to accomplish what integer-order calculus cannot. We believe that many of the great future developments will come from the applications of fractional calculus to different fields.

   • 2008, Shantanu Das, Functional Fractional Calculus for System Identification and Controls, Springer, page 19:

     This chapter presents a number of functions that have been found to be useful in providing solutions to the problems of fractional calculus. […] The Mittag-Leffler function is the basis function to functional calculus, as the exponential function is to the integer-order calculus.

関連する語

• fractional derivative
• fractional differential equation
• fractional Fourier transform
• fractional quantum mechanics
• fractional trigonometry

参考

• fractional-order system

Further reading

• Differintegral on Wikipedia.Wikipedia
• Erdelyi–Kober operator on Wikipedia.Wikipedia
• Riemann–Liouville integral on Wikipedia.Wikipedia
• Weyl integral on Wikipedia.Wikipedia
• Mittag-Leffler function on Wikipedia.Wikipedia
• Fractional Fourier transform on Wikipedia.Wikipedia
• Fractional-order system on Wikipedia.Wikipedia