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  • 标题:On Generalized High Order Derivatives of Nonsmooth Functions
  • 本地全文:下载
  • 作者:Samaneh Soradi Zeid ; Ali Vahidian Kamyad
  • 期刊名称:American Journal of Computational Mathematics
  • 印刷版ISSN:2161-1203
  • 电子版ISSN:2161-1211
  • 出版年度:2014
  • 卷号:04
  • 期号:04
  • 页码:317-328
  • DOI:10.4236/ajcm.2014.44028
  • 语种:English
  • 出版社:Scientific Research Publishing
  • 摘要:In this paper, we proposed a Extension Definition to derive, simultaneously, the first, second and high order generalized derivatives for non-smooth functions, in which the involved functions are Riemann integrable but not necessarily locally Lipschitz or continuous. Indeed, we define a functional optimization problem corresponding to smooth functions where its optimal solutions are the first and second derivatives of these functions in a domain. Then by applying these functional optimization problems for non-smooth functions and using this method we obtain generalized first derivative (GFD) and generalized second derivative (GSD). Here, the optimization problem is approximated with a linear programming problem that by solving of which, we can obtain these derivatives, as simple as possible. We extend this approach for obtaining generalized high order derivatives (GHODs) of non-smooth functions, simultaneously. Finally, for efficiency of our approach some numerical examples have been presented.
  • 关键词:Generalized Derivative; Smooth and Nonsmooth Functions; Nonsmooth Optimization Problem; Linear Programming
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