کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
843266 | 1470529 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Best approximation, coincidence and fixed point theorems for set-valued maps in RR-trees
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Best approximation, coincidence and fixed point theorems for set-valued maps in RR-trees Best approximation, coincidence and fixed point theorems for set-valued maps in RR-trees](/preview/png/843266.png)
چکیده انگلیسی
Suppose XX is a closed, convex and geodesically bounded subset of a complete RR-tree MM, and suppose F:X⊸MF:X⊸M is an almost lower semicontinuous set-valued map whose values are nonempty closed convex. Suppose also G:X⊸XG:X⊸X is a continuous, onto quasiconvex set-valued map with compact, convex values. Then there exists x0∈Xx0∈X such that d(G(x0),F(x0))=infx∈Xd(x,F(x0)). As applications, we give some coincidence and fixed point results for weakly inward set-valued maps. Our results generalize some well-known results in literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nonlinear Analysis: Theory, Methods & Applications - Volume 71, Issues 5–6, 1–15 September 2009, Pages 1649–1653
Journal: Nonlinear Analysis: Theory, Methods & Applications - Volume 71, Issues 5–6, 1–15 September 2009, Pages 1649–1653
نویسندگان
A. Amini-Harandi, A.P. Farajzadeh,