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On differential equations with interval coefficients

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Date
2019
Author
Gasilov, Nizami A.
Amrahov, Sahin Emrah
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Abstract
In this study, a new approach is developed to solve the initial value problem for interval linear differential equations. In the considered problem, the coefficients and the initial values are constant intervals. In the developed approach, there is no need to define a derivative for interval-valued functions. All derivatives used in the approach are classical derivatives of real functions. The reason for this is that the solution of the problem is defined as a bunch of real functions. Such a solution concept is compatible also with the robust stability concept. Sufficient conditions are provided for the solution to be expressed analytically. In addition, on a numerical example, the solution obtained by the proposed approach is compared with the solution obtained by the generalized Hukuhara differentiability. It is shown that the proposed approach gives a new type of solution. The main advantage of the proposed approach is that the solution to the considered interval initial value problem exists and is unique, as in the real case.
URI
http://hdl.handle.net/11727/4885
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  • Mühendislik Fakültesi / Faculty of Engineering [117]
  • Scopus İndeksli Yayın Koleksiyonu [450]
  • Wos İndeksli Yayınlar Koleksiyonu [745]

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