حل مسئلۀ نامساوی تغییراتی روی مجموعه نقاط ثابت مشترک خانواده‌ای از عملگرهای نیم انقباضی

نویسنده
دانشگاه علم و فناوری مازندران، گروه ریاضی، بهشهر
چکیده
در این مقاله، با استفاده از روش تندترین کاهش ترکیبی و الگوریتم چسبندگی، الگوریتم جدیدی را برای حل مسئله نامساوی تغییراتی ارائه می‌دهیم. دنبالۀ تولید شده به‌وسیلۀ این الگوریتم، همگرای قوی به عضو مشترک از مجموعه نقاط صفر مشترک خانواده‌ای از عملگرهای قویاً یکنوای معکوس و مجموعه نقاط ثابت مشترک خانواده‌ای از عملگرهای نیم‌انقباضی است. هم‌چنین نشان می‌دهیم دنبالۀ تولید شده به‌وسیلۀ این الگوریتم همگرای قوی به یک جواب مسئله نامساوی تغییراتی روی مجموعه نقاط ثابت مشترک خانواده‌ای متناهی از عملگرهای شبه ناانبساطی و اکید شبه انقباضی در یک فضای هیلبرت است. در پایان کاربردهایی از این نتایج برای حل مسئله نقطه ثابت مشترک شکافتنی به‌منظور یافتن عضوی در مجموعه نقاط ثابت مشترک خانواده متناهی از نگاشت‌های اکید شبه انقباضی در یک فضای هیلبرت، چنان‌‌که تصویر آن تحت یک عملگر خطی وکراندار در مجموعه نقاط ثابت مشترک خانواده‌ای از نگاشت‌های ناانبساطی قرار گیرد، ارائه می‌دهیم
کلیدواژه‌ها

عنوان مقاله English

Variational Inequality Problem Over the Set of Common Fixed Points of a Family of Demi-Contractive Mappings

نویسنده English

Mohammad Eslamian
University of Science and Technology of Mazandaran
چکیده English

In this paper, by using the viscosity iterative method and the hybrid steepest-descent method, we present a new algorithm for solving the variational inequality problem. The sequence generated by this algorithm is strong convergence to a common element of the set of common zero points of a finite family of inverse strongly monotone operators and the set of common fixed points of a finite family of demi-contractive mappings. Also, we prove that the sequence generated by this algorithm is strong convergence to a solution of a system of variational inequalities over the set of common fixed points of quasi-nonexpansive mappings and strict pseudo-contractive mappings in a Hilbert space. Finally, some applications of this results are present for solving the split common fixed point problem, which entails finding a point which belongs to the set of common fixed points of a finite family of of strict pseudo-contractive mappings in a Hilbert space such that its image under a linear transformation belongs to the set of common fixed points of a finite family of nonexpasive mappings in the image space../files/site1/files/63/1.pdf

کلیدواژه‌ها English

Variational inequality problem
Demi-contractive mappings
Fixed point
strict pseudo-contractive mappings
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