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論文名稱 Title |
廣義平衡問題及固定點問題的黏性近似方法 Viscosity Approximation Methods for Generalized Equilibrium Problems and Fixed Point Problems |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
40 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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口試日期 Date of Exam |
2008-05-30 |
繳交日期 Date of Submission |
2008-06-20 |
關鍵字 Keywords |
非擴張映射、固定點、廣義平衡問題、黏性近似方法 Generalized equilibrium problem, Strong convergence, Fixed point, Nonexpansive mapping, Viscosity approximation method |
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統計 Statistics |
本論文已被瀏覽 5733 次,被下載 1226 次 The thesis/dissertation has been browsed 5733 times, has been downloaded 1226 times. |
中文摘要 |
本論文的目的是研究在一個廣義平衡問題(簡稱,GEP)以及在一個希爾伯特空間內的非擴張映射的固定點問題裡,找到一般元素解的集合。首先,透過使用著名的KKM技術,我們為GEP得到輔助問題的解的存在和唯一性。其次,因為這個結果和納德勒的定理,我們透過黏性近似方法實施一個反覆的迭代找到各種GEP解的集合和各種非擴張映射的固定點的集合的一般元素。 |
Abstract |
The purpose of this paper is to investigate the problem of finding a common element of the set of solutions of a generalized equilibrium problem (for short, GEP) and the set of fixed points of a nonexpansive mapping in a Hilbert space. First, by using the well-known KKM technique we derive the existence and uniqueness of solutions of the auxiliary problems for the GEP. Second, on account of this result and Nadler's theorem, we introduce an iterative scheme by the viscosity approximation method for finding a common element of the set of solutions of the GEP and the set of fixed points of the nonexpansive mapping. Furthermore, it is proven that the sequences generated by this iterative scheme converge strongly to a common element of the set of solutions of the GEP and the set of fixed points of the nonexpansive mapping. |
目次 Table of Contents |
1. Introduction 7 2. Preliminaries 12 3. Auxiliary Problem and Iterative Scheme 16 4. Strong Convergence Theorems 26 5. References 37 |
參考文獻 References |
[ 1 ]. ZENG, L. C., SCHAIBLE, S., and YAO, J. C., Iterative Algorithm for Generalized Set-Valued Strongly Nonlinear Mixed Variational-Like Inequalities, Journal of Optimizatio Theory and Applications, Vol. 124, pp. 725-738, 2005. [ 2 ]. BLUM, E., and OETTLI, W., From Optimization and Variational Inequalities to Equilibrium Problems, The Mathematics Student, Vol. 63, pp. 123-145, 1994. [ 3 ]. COMBETTES, P. L., and HIRSTOAGA, S. A., Equilibrium Programming in Hilbert Spaces, Journal of Nonlinear and Convex Analysis, Vol. 6, pp. 117-136, 2005. [ 4 ]. FLAM, S. D., and ANTIPIN, A. S., Equilibrium Programming Using Proximal-Like Algorithms, Mathematical Programming, Vol. 78, pp. 29-41, 1997. [ 5 ]. ZENG, L. C., and YAO, J. C., Implicit Iteration Scheme with Perturbed Mapping for Common Fixed Points of a Finite Family of Nonexpansive Mappings, Nonlinear Analysis, Vol. 64, pp. 2507-2515, 2006. [ 6 ]. ZENG, L. C., and YAO, J. C., Strong Convergence Theorem by an Extragradient Method for Fixed Point Problems and Variational Inequality Problems, Taiwanese Journal of Mathematics, Vo1. 10, No. 5, pp. 1293-1303, 2006. [ 7 ]. MOUDAFI, A., Viscosity Approximation Methods for Fixed-Point Problems, Journal of Mathematical Analysis and Applications, Vol. 241, pp. 46-55, 2000. [ 8 ]. TAKAHASHI, S., and TAKAHASHI, W., Viscosity Approximation Methods for Equilibrium Problems and Fixed Point Problems in Hilbert Spaces, Journal of Mathematical Analysis and Applications, Vol. 331, pp. 506-515, 2007. [ 9 ]. WITTMANN, R., Approximation of Fixed Points of Nonexpansive Mappings, Archiv der Mathematik, Vol. 58, pp. 486-491, 1992. [ 10 ]. TADA, A., and TAKAHASHI, W., Strong Convergence Theorem for an Equilibrium Problem and a Nonexpansive Mapping, in: Nonlinear Analysis and Convex Analysis , pp. 609-617 (W. Takahashi and T. Tanaka (Eds.)), Yokohama Publishers, Yokohama, 2007. [ 11 ]. ANSARI, Q. H., and YAO, J. C., Iterative Schemes for Solving Mixed Variational-Like Inequalities, Journal of Optimization Theory and Applications, Vol. 108, pp. 527-541, 2001. [ 12 ]. NADLER, S. B., Jr., Multivalued Contraction Mappings, Pacific Journal of Mathematics, Vol. 30, pp. 475-488, 1969. [ 13 ]. FAN, K., A Generalization of Tychonoff's Fixed-Point Theorem, Mathematische Annalen, Vol. 142, pp. 305-310, 1961. [ 14 ]. XU, H. K., Iterative Algorithms for Nonlinear Operators, Journal of the London Mathematical Society, Vol. 66, pp. 240-256, 2002. |
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