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A NEW CLASS OF BILEVEL GENERALIZED MIXED EQUILIBRIUM PROBLEMS IN BANACH SPACES 被引量:2
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作者 丁协平 《Acta Mathematica Scientia》 SCIE CSCD 2012年第4期1571-1583,共13页
A new class of bilcvel generalized mixed equilibrium problems involving setvalued mappings is introduced and studied in a real Banach space. By using the auxiliary principle technique, new iterative algorithms for sol... A new class of bilcvel generalized mixed equilibrium problems involving setvalued mappings is introduced and studied in a real Banach space. By using the auxiliary principle technique, new iterative algorithms for solving the generalized mixed equilibrium problems and bilevel generalized mixed equilibrium problems involving set-valued mappings are suggested and analyzed. Existence of solutions and strong convergence of the iterative sequences generated by the algorithms are proved under quite mild conditions. The behavior of the solution set of the generalized mixed equilibrium problems and bilevel generalized mixed equilibrium problems is also discussed. These results are new and generalize some recent results in this field. 展开更多
关键词 generalized mixed equilibrium problem bilevel generalized mixed equilib-rium problem involving set-valued mappings MONOTONICITY auxiliary prin-ciple iterative algorithm Banach space
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An Extension of Chebyshev's Maximum Principle to Several Variables
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作者 Meng Zhao-liang Luo Zhong-xuan Ma Fu-ming 《Communications in Mathematical Research》 CSCD 2013年第4期363-369,共7页
In this article, we generalize Chebyshev's maximum principle to several variables. Some analogous maximum formulae for the special integration functional are given. A sufficient condition of the existence of Chebyshe... In this article, we generalize Chebyshev's maximum principle to several variables. Some analogous maximum formulae for the special integration functional are given. A sufficient condition of the existence of Chebyshev's maximum principle is also obtained. 展开更多
关键词 cubature formula orthogonal polynomial Chebyshev's maximum prin-ciple nonstandard Gaussian quadrature
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Algorithms for computing the global infimum and minimum of a polynomial function 被引量:5
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作者 ShuiJing Xiao GuangXing Zeng 《Science China Mathematics》 SCIE 2012年第4期881-891,共11页
By catching the so-called strictly critical points,this paper presents an effective algorithm for computing the global infimum of a polynomial function.For a multivariate real polynomial f ,the algorithm in this paper... By catching the so-called strictly critical points,this paper presents an effective algorithm for computing the global infimum of a polynomial function.For a multivariate real polynomial f ,the algorithm in this paper is able to decide whether or not the global infimum of f is finite.In the case of f having a finite infimum,the global infimum of f can be accurately coded in the Interval Representation.Another usage of our algorithm to decide whether or not the infimum of f is attained when the global infimum of f is finite.In the design of our algorithm,Wu’s well-known method plays an important role. 展开更多
关键词 polynomial optimization global infimum global minimum strictly critical point Transfer prin-ciple Wu's method rational univariate representation
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DISCRETE MAXIMUM PRINCIPLE AND CONVERGENCE OF POISSON PROBLEM FOR THE FINITE POINT METHOD 被引量:1
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作者 Guixia Lv Shunkai Sun Longjun Shen 《Journal of Computational Mathematics》 SCIE CSCD 2017年第3期245-264,共20页
This paper makes some mathematical analyses for the finite point method based on directional difference. By virtue of the explicit expressions of numerical formulae using only five neighboring points for computing fir... This paper makes some mathematical analyses for the finite point method based on directional difference. By virtue of the explicit expressions of numerical formulae using only five neighboring points for computing first-order and second-order directional differ- entials, a new methodology is presented to discretize the Laplacian operator defined on 2D scattered point distributions. Some sufficient conditions with very weak limitations are obtained, under which the resulted schemes are positive schemes. As a consequence, the discrete maximum principle is proved, and the first order convergent result of O(h) is achieved for the nodal solutions defined on scattered point distributions, which can be raised up to O(h2) on uniform point distributions. 展开更多
关键词 Finite point method Directional difference MESHLESS Discrete maximum prin-ciple Convergence analysis.
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