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Analytical aspects of the interval unilateral quadratic matrix equations and their united solution sets | ||
| International Journal of Nonlinear Analysis and Applications | ||
| مقاله 20، دوره 8، شماره 2، اسفند 2017، صفحه 223-241 اصل مقاله (490.97 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2017.10778.1523 | ||
| نویسندگان | ||
| Tayyebe Haqiri* 1؛ Azim Rivaz2؛ Mahmoud Mohseni Moghadam2 | ||
| 1School of Mathematics and Computer Science, Damghan University, Damghan, Iran; Member of Young Researchers Society of Shahid Bahonar University of Kerman, Kerman, P.O. Box 76169-14111, Iran | ||
| 2Department of Applied Mathematics, Faculty of Mathematics and Computer, Shahid Bahonar University of Kerman, Kerman, Iran | ||
| تاریخ دریافت: 17 اسفند 1395، تاریخ بازنگری: 07 مرداد 1396، تاریخ پذیرش: 04 مهر 1396 | ||
| چکیده | ||
| This paper introduces the interval unilateral quadratic matrix equation, $AX^2+BX+C=0$ and attempts to find various analytical results on its $AE$-solution sets in which $A, B$ and $C$ are known real interval matrices, while $X$ is an unknown matrix. These results are derived from a generalization of some results of Shary. We also give sufficient conditions for non-emptiness of some quasi-solution sets, provided that $A$ is regular. As the most common case, the united solution set has been studied and two direct methods for computing an outer estimation and an inner estimation of the united solution set of an interval unilateral quadratic matrix equation are proposed. The suggested techniques are based on nonlinear programming as well as sensitivity analysis. | ||
| کلیدواژهها | ||
| AE-solution sets؛ interval unilateral quadratic matrix equation؛ united solution set؛ nonlinear programming؛ Sensitivity analysis | ||
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