In this article we shall examine several different types of figurative numbers which have been studied extensively over the period of 2500 years, and currently scattered on hundreds of websites. We shall discuss their...In this article we shall examine several different types of figurative numbers which have been studied extensively over the period of 2500 years, and currently scattered on hundreds of websites. We shall discuss their computation through simple recurrence relations, patterns and properties, and mutual relationships which have led to curious results in the field of elementary number theory. Further, for each type of figurative numbers we shall show that the addition of first finite numbers and infinite addition of their inverses often require new/strange techniques. We sincerely hope that besides experts, students and teachers of mathematics will also be benefited with this article.展开更多
By using some results of pseudo-monotone operator, we discuss the existence and uniqueness of the solution of one kind nonlinear Neumann boundary value problems involving the p-Laplacian operator. We also construct an...By using some results of pseudo-monotone operator, we discuss the existence and uniqueness of the solution of one kind nonlinear Neumann boundary value problems involving the p-Laplacian operator. We also construct an iterative scheme converging strongly to this solution.展开更多
Using perturbation theories on sums of ranges of nonlinear accretive mappings of Calvert and Gupta, we present the abstract results on the existence of solutions of one kind nonlinear Neumann boundary value problems r...Using perturbation theories on sums of ranges of nonlinear accretive mappings of Calvert and Gupta, we present the abstract results on the existence of solutions of one kind nonlinear Neumann boundary value problems related to p-Laplacian operator. The equation discussed in this paper and the method used here extend and complement some of the previous work.展开更多
This paper discusses both the nonexistence of positive solutions for second-order three-point boundary value problems when the nonlinear term f（t, x, y） is superlinear in y at y = 0 and the existence of multiple pos...This paper discusses both the nonexistence of positive solutions for second-order three-point boundary value problems when the nonlinear term f（t, x, y） is superlinear in y at y = 0 and the existence of multiple positive solutions for second-order three-point boundary value problems when the nonlinear term f（t, x,y） is superlinear in x at ＋∞.展开更多
New oscillation criteria for general differential equations of the form x^（n）（t）＋pn-1 （t）x^（n-1）（t）＋…＋P1（t）x′（t）＋p0（t）x（t）＋q1（t）x^μ （t） = q2 （t）x^λ （t）＋e（t） where λ,μ are the ra...New oscillation criteria for general differential equations of the form x^（n）（t）＋pn-1 （t）x^（n-1）（t）＋…＋P1（t）x′（t）＋p0（t）x（t）＋q1（t）x^μ （t） = q2 （t）x^λ （t）＋e（t） where λ,μ are the ratios of positive odd integers, 0 〈 μ 〈 1 and λ 〉 1 are established.展开更多
基金Supported by the National Natural Science Foundation of China(11071053)the Natural Science Foundation of Hebei Province(A2010001482)the Project of Science and Research of Hebei Education Department(the second round in 2010)
文摘In this article we shall examine several different types of figurative numbers which have been studied extensively over the period of 2500 years, and currently scattered on hundreds of websites. We shall discuss their computation through simple recurrence relations, patterns and properties, and mutual relationships which have led to curious results in the field of elementary number theory. Further, for each type of figurative numbers we shall show that the addition of first finite numbers and infinite addition of their inverses often require new/strange techniques. We sincerely hope that besides experts, students and teachers of mathematics will also be benefited with this article.
基金Supported by the National Natural Science Foundation of China (No. 11071053)the Natural Science Foundation of Hebei Province (No.A2010001482)the project of Science and Research of Hebei Education Department (the second round in 2010)
文摘By using some results of pseudo-monotone operator, we discuss the existence and uniqueness of the solution of one kind nonlinear Neumann boundary value problems involving the p-Laplacian operator. We also construct an iterative scheme converging strongly to this solution.
基金Supported by the National Natural Science Foundation of China (Grant No.10771050)the Project of Science and Research of Hebei Education Department (Grant No.2009115)
文摘Using perturbation theories on sums of ranges of nonlinear accretive mappings of Calvert and Gupta, we present the abstract results on the existence of solutions of one kind nonlinear Neumann boundary value problems related to p-Laplacian operator. The equation discussed in this paper and the method used here extend and complement some of the previous work.
基金Supported by the National Natural Science Foundation of China(No.10571111)the fund of Shandong Education Committee(J07WH08).
文摘This paper discusses both the nonexistence of positive solutions for second-order three-point boundary value problems when the nonlinear term f（t, x, y） is superlinear in y at y = 0 and the existence of multiple positive solutions for second-order three-point boundary value problems when the nonlinear term f（t, x,y） is superlinear in x at ＋∞.
文摘New oscillation criteria for general differential equations of the form x^（n）（t）＋pn-1 （t）x^（n-1）（t）＋…＋P1（t）x′（t）＋p0（t）x（t）＋q1（t）x^μ （t） = q2 （t）x^λ （t）＋e（t） where λ,μ are the ratios of positive odd integers, 0 〈 μ 〈 1 and λ 〉 1 are established.
