Some Preliminary Comments To those who might think our approach is too mathematical for a book published in a collection oriented towards computational physics, we would like to say that many of the methods discussed here are used by engineers in industry for solving[r]
Academic Publishers, Dordrecht, The Netherlands, 2003. 3 D. O’Regan, Theory of Singular Boundary Value Problems, World Scientific, River Edge, NJ, USA, 1994. 4 P. Habets and F. Zanolin, “Upper and lower solutions for a generalized Emden-Fowler equation,” Jour[r]
By constructing available upper and lower solutions and combining the Schauder’s fixed point theorem with maximum principle, this paper establishes su ffi cient and necessary conditions to guarantee the existence of C ld 0 , 1 T as well as C Δ ld 0 , 1 T positive solutions for a clas[r]
Bài toán tính xấp xỉ phương trình đạo hàm riêng xuất hiện nhiều trong khoa học và kỹ thuật. Hiện nay có nhiều phương pháp phổ biến giải bài toán này như: phương pháp Sai phân hữu hạn (FD-Finite Difference), phương pháp Phần tử hữu hạn (FEM-Finite Element Method), phương pháp Phần tử biên (BEM-Bounda[r]
Electromagnetic devices are present everywhere in our daily life. In particular, they extremely play an important role in the fields of the electrical system. Therefore, the modeling and analyzing the electromagetic problems become currently a matter of concern and topicality for researchers and des[r]
We propose a new monotone finite-difference scheme for the second-order local approximation on a nonuniform grid that approximates the Dirichlet initial boundary value problem (IBVP) for the quasi-linear convection-diffusion equation with unbounded nonlinearity, namely, for the Gamma equation obtain[r]
We propose a new monotone finite-difference scheme for the second-order local approximation on a nonuniform grid that approximates the Dirichlet initial boundary value problem (IBVP) for the quasi-linear convection-diffusion equation with unbounded nonlinearity, namely, for the Gamma equation obtain[r]
[8] G. V. Smirnov, Introduction to the Theory of Differential Inclusions , Graduate Studies in Mathe- matics, vol. 41, American Mathematical Society, Rhode Island, 2002. Petr Stehl´ık: Department of Mathematics, Faculty of Applied Sciences, University of West Bo- hemia,[r]
l1 , n = 1 , 2 , . . . (14. 4 . 4 . 11 ) The functions ψ n = ψ n (y) are determined by solving the following problem for a linear ordinary differential equation with homogeneous boundary conditions: ψ yy – λ n ψ = 0 ; ψ = 0 at y = 0 . (14. 4 . 4 . 12 ) It is a special case
2 F. Brackx, J. Bureˇs, H. De Schepper, D. Eelbode, F. Sommen, and V. Souˇccek, “Fundaments of Her- mitean Cli ff ord analysis—part II: splitting of h -monogenic equations,” Complex Variables and Elliptic Equations, vol. 52, no. 10-11, pp. 1063–1079, 2007. 3 F. Brackx, H. De Schepp[r]
(iii) Theorem 2.1 holds independently of the boundary conditions for u(x). However, in what follows, we will show that the maximum value of Φ (x,a,b) must occur at a critical point of u, if Ω is a convex domain in R N . Suppose that Φ(x, a,b) takes its[r]
The main tools will be based on the method of non-local boundary value problems [1]-[6] and the parameter choice rules of a priori and a posteriori.. We then proved that these parameter [r]
[11] L. H. Erbe and H. Wang, “On the existence of positive solutions of ordinary differential equa- tions,” Proceedings of the American Mathematical Society, vol. 120, no. 3, pp. 743–748, 1994. [12] D. J. Guo and V. Lakshmikantham, Nonlinear Problems in Abstract Cones, v[r]
9 D. Kinderlehrer and G. Stampacchia, An Introduction to Variational Inequalities and Their Applications, vol. 88 of Pure and Applied Mathematics, Academic Press, New York, NY, USA, 1980. 10 I. Yamada, “The hybrid steepest descent method for the variational inequality probl[r]
Δs , (2.30) which contradicts ( 2.21 ), so, we have p ( T ) ≥ 0, and by ( 2.22 ), p (0) ≥ p ( T ) e − a ( T , 0) ≥ 0. Hence, 0 < t ∗ 1 < T . Let t j < t 1 ∗ ≤ t j +1 for some j . We first assume that t 0 ∗ < t 1 ∗ , so i ≤ j . Let
7 Q. Yao, “Positive solutions of a nonlinear elastic beam equation rigidly fastened on the left and simply supported on the right,” Nonlinear Analysis: Theory, Methods & Applications, vol. 69, no. 5-6, pp. 1570– 1580, 2008. 8 M. Ruyun, Z. Jihui, and F. Shengmao, “The method[r]
[14] V. L. Makarov, I. P. Gavrilyuk, M. V. Kutniv, and M. Hermann, A two-point diff erence scheme of an arbitrary order of accuracy for BVPs for systems of first order nonlinear ODEs, Computational Methods in Applied Mathematics 4 (2004), no. 4, 464–493. [15] V.[r]
i 1 β i > 1 . In this paper, nonlinear terms f and g may be singular at t 0 , x, y θ , and/or x , y θ , where θ denotes the zero element of Banach space E . By singularity, we mean that f t, x 0 , x 1 , y 0 , y 1 → ∞ as t → 0 or x i , y i → θ i 0 , 1 . Very recently, by[r]
The purpose of this paper is to study the existence of solutions for nonlocal BVP 1.1 , 1.2 at resonance case i.e., g 1 1 and establish some existence results under nonlinear growth restriction of f . Our method is based upon the coincidence degree theory <[r]
2260–2276, 2006. 8 A. Cabada and J. J. Nieto, “Rapid convergence of the iterative technique for first order initial value problems,” Applied Mathematics and Computation, vol. 87, no. 2-3, pp. 217–226, 1997. 9 V. Lakshmikantham and J. J. Nieto, “Generalized quasili[r]