... that is, AB BA, then A B is a diagonalization matrix and μ1 λ1≤ μ2 λ2 ≤ · · · ≤ μ n λ n are the eigenvalues of A B. Proof Since A is a diagonalization n × n matrix, there exists an inverse matrix ... Bu can be weakened, the self-adjointness of Bu can be removed and Bu is not necessarily commuting with the operator A. In this note, we consider a two-point boundary value problem of a class ... Boundary Value Problems Now, we consider the boundary value problem ⎧ ⎨ ⎩ u Au gt, u ht, t ∈ 0, π, where u :0, π → R n , A is a real constant diagonalization n× n matrix with real eigenvalues
Ngày tải lên: 21/06/2014, 20:20
... Trang 1To appear in: Journal of Mathematical Analysis and ApplicationsReceived date: 22 September 2014 Please cite this article in press as: N.H Tuan et al., On an inverse boundary value problem ... boundary value problem of a nonlinear elliptic equation inthree dimensionsNguyen Huy Tuana,∗, Le Duc Thangb, Vo Anh Khoaa,d, Thanh Tranc a Department of Mathematics, University of Science, Vietnam ... 7, 67100, L’Aquila, Italy. Abstract This work considers an inverse boundary value problem for a 3D nonlinear elliptic partial differentialequation in a bounded domain In general, the problem is
Ngày tải lên: 16/12/2017, 17:56
The problem of a self gravitating scalar
... cosmological constant is the appearance of a cosmological horizon In fact, although the small data assumptions do not allow the formation of ablack hole event horizon, a cosmological apparent horizon ... Universit´ario de Lisboa (ISCTE-IUL), Lisboa, Portugal (2)Centro de Matem´atica, Universidade do Minho, Gualtar, 4710-057 Braga, Portugal (3)Centro de An´alise Matem´atica, Geometria e Sistemas Dinˆamicos,Instituto ... contrast with the Λ = 0 case, where all the characteristics approach the center ofsymmetry at a similar rate Also, for a vanishing cosmological constant the coefficient of the integral term of
Ngày tải lên: 26/01/2022, 15:34
Báo cáo hóa học: " Research Article Existence of Positive Solutions to a Boundary Value Problem for a Delayed Nonlinear Fractional Differential System " ppt
... has been done for fractional differential equations with delays Therefore, in this paper, we consider a boundary value problem of a general delayed nonlinear fractional system With the help of ... other hand, we know that delay arises naturally in practical systems due to the transmission of signal or the mechanical transmission Though theory of ordinary differential equations with delays ... Differential System 1 School of Mathematics and Physics, School of Nuclear Science and Technology, University of South China, Hengyang 421001, China 2 Department of Mathematics, Wilfrid Laurier
Ngày tải lên: 21/06/2014, 05:20
Báo cáo hóa học: " Research Article Finding Common Solutions of a Variational Inequality, a General System of Variational Inequalities, and a Fixed-Point Problem via a Hybrid Extragradient Method" ppt
... Fixed-Point Problem via a Hybrid Extragradient Method 1 Department of Mathematics, Shanghai Normal University, Scientific Computing Key Laboratory of Shanghai Universities, Shanghai 200234, China 2 Department ... propose a hybrid extragradient method for finding a common element of the solution set of a variational inequality problem, the solution set of a general system of variational inequalities,and the ... Department of Business Administration, College of Management, Yuan-Ze University, Taoyuan Hsien, Chung-Li City 330, Taiwan 3 Department of Applied Mathematics, National Sun Yat-Sen University, Kaohsiung
Ngày tải lên: 21/06/2014, 07:20
Báo cáo hóa học: " Research Article Positive Solution of Singular Boundary Value Problem for a Nonlinear Fractional Differential Equation" potx
... and Y Luchko, “Invariance of a partial differential equation of fractional order under the Lie group of scaling transformations,” Journal of Mathematical Analysis and Applications, vol 227, no ... recent years, fractional differential equations have been of great interest, and there have been many results on existence and uniqueness of the solution of boundary value problems for fractional differential ... existence and uniqueness of a positive solution to a singular boundary value problem for a class of nonlinear fractional differential equations with non-monotone term Moreover, the existence of maximal
Ngày tải lên: 21/06/2014, 07:20
báo cáo hóa học:" Research Article Existence of Positive Solutions of a Singular Nonlinear Boundary Value Problem" potx
... authors, see Asakawa1, Agarwal and O’Regan 2, O’Regan 3, Habets and Zanolin 4, Xu and Ma5, Yang 6, and the references therein The main tools in 1 6 are the method of lower and upper ... 1.2 by applying Rabinowitz’s global bifurcation theorem, where a is allowed to have singularities at t 0, 1 and f is linearizable at 0 as well as at ∞ It is the purpose of this paper to study ... College of Mathematics and Information Science, Northwest Normal University, Lanzhou 730070, China 2 The School of Mathematics, Physics & Software Engineering, Lanzhou Jiaotong University, Lanzhou
Ngày tải lên: 21/06/2014, 11:20
báo cáo hóa học:" Research Article Accurate Asymptotic Formulas for Eigenvalues and Eigenfunctions of a Boundary-Value Problem of Fourth Order" pdf
... Differential Operators, American Mathematical Society, Providence, RI, USA, 1975. 3 V A Marchenko, Sturm-Liouville Operators and Applications, vol 22 of Operator Theory: Advances and Applications, ... Birkh¨auser, Basel, Switzerland, 1986. 4 M A Naimark, Linear Differential Operators Part 1, Frederick Ungar, New York, NY, USA, 1967. 5 F S Rofe-Beketov and A M Kholkin, Spectral Analysis of ... Trang 1Volume 2010, Article ID 720235, 21 pagesdoi:10.1155/2010/720235 Research Article Accurate Asymptotic Formulas for Eigenvalues and Eigenfunctions of a Boundary-Value Problem of Fourth
Ngày tải lên: 21/06/2014, 11:20
báo cáo hóa học:" Research Article Existence and Multiplicity of Positive Solutions of a Boundary-Value Problem for Sixth-Order ODE with Three Parameters" pdf
... Three Parameters Liyuan Zhang and Yukun An Nanjing University of Aeronautics and Astronautics, 29 Yudao st., Nanjing 210016, China Correspondence should be addressed to Liyuan Zhang,binghaiyiyuan1@163.com ... in materials that are undergoing a Trang 2transition between the liquid and solid state When fx, u uưu3, it was studied by Gardnerand Jones1 as well as by Caginalp and Fife 2 If f is an ... one has the following: 1 Equation 2.1 has a triple root if A B 0, 2 Equation 2.1 has a real root and two mutually conjugate imaginary roots if Δ B2 − 4AC > 0, Trang 43 Equation
Ngày tải lên: 21/06/2014, 11:20
báo cáo hóa học:" Research Article Multiple Positive Solutions of a Singular Emden-Fowler Type Problem for Second-Order Impulsive Differential Systems" pdf
... 1989 S G Hristova and D D Ba˘nov, “Existence of periodic solutions of nonlinear systems of differential ı equations with impulse effect,” Journal of Mathematical Analysis and Applications, vol 125, ... contradicts to Lemma 3.5 and the proof is done Lemma 3.7 Assume D1 ∼ D6 Then every nonempty chain in A has a unique supremum in A Proof Let C be a chain in A Without loss of generality, we may ... ∞ may be singular at t and/or Boundary Value Problems We first set up an equivalent operator equatio for problem P Let us define Aλ : X → P C 0, and Bμ : X → P C 0, by taking Aλ u, v t a c−a t
Ngày tải lên: 21/06/2014, 11:20
báo cáo hóa học:" Research Article On a Perturbed Dirichlet Problem for a Nonlocal Differential Equation of Kirchhoff Type" docx
... is a Carath´eodory function, K :R → R is a positive continuous function, and λ is a real parameter Direct variational methods are used In particular, the proof of the main result is based on a ... of a class of nonlocal problems,” NonlinearAnalysis: Theory, Methods & Applications, vol 122, no 1, pp 25–30, 2010. 8 A Ambrosetti, H Brezis, and G Cerami, “Combined effects of concave and ... Continuum Mechanics and Partial Di fferential Equations, G M de la Penha and L A J Medeiros, Eds., vol 30 of North-Holland Mathematics Studies, pp 284–346, North-Holland, Amsterdam, The Netherlands, 1978
Ngày tải lên: 21/06/2014, 11:20
Báo cáo sinh học: " Research Article A Spectral Regularization Method for a Cauchy Problem of the Modified Helmholtz Equation" potx
... interval0, 1 from the Cauchy data pairs g, h located at x 1 Of course, since g and h are assumed to be measured, there must be measurement errors, and we would actually have noisy data function ... boundary data, and small errors in the boundary data can amplify the numerical solution infinitely; hence it is impossible to solve Cauchy problem of Helmholtz equation by using classical numerical ... Trang 1Volume 2010, Article ID 212056, 13 pagesdoi:10.1155/2010/212056 Research Article A Spectral Regularization Method for a Cauchy Problem of the Modified Helmholtz Equation Ailin Qian, Jianfeng
Ngày tải lên: 21/06/2014, 16:20
báo cáo hóa học:" Research Article Existence and Uniqueness of Positive Solutions for Discrete Fourth-Order Lidstone Problem with a Parameter" doc
... Yanbin Sang,1, 2 Zhongli Wei,2, 3 and Wei Dong4 1 Department of Mathematics, North University of China, Taiyuan, Shanxi 030051, China 2 School of Mathematics, Shandong University, Jinan, Shandong ... 250100, China 3 Department of Mathematics, Shandong Jianzhu University, Jinan, Shandong 250101, China 4 Department of Mathematics, Hebei University of Engineering, Handan, Hebei 056021, China Correspondence ... should be addressed to Yanbin Sang,sangyanbin@126.com Received 9 January 2010; Revised 23 March 2010; Accepted 26 March 2010 Academic Editor: A Pankov Copyrightq 2010 Yanbin Sang et al This is an open
Ngày tải lên: 21/06/2014, 18:20
Báo cáo hóa học: "Design and implementation of a real time and train less eye state recognition system" docx
... Authors of [6, 7] use the fact that the iris and pupil are darker than skin and white part of the eye Authors of [11] proposed an algorithm based on the cascade AdaBoost classifier In [12], a ... different angles, dark eyelashes, eyebrows image located in eye block, and glasses decrease the accuracy of algorithms presented in [6, 7] Since Hough transform has a massive calculation, the algorithm ... the state of an eye In [14], the horizontal projection of the image of a face is calculated to determine state of an eye Some works also are based on “Supported Vector Machine” (SVM) classifier
Ngày tải lên: 21/06/2014, 19:20
Báo cáo hóa học: "Research Article The Problem of Scattering by a Mixture of Cracks and Obstacles" pptx
... Trang 1Volume 2009, Article ID 524846, 19 pagesdoi:10.1155/2009/524846 Research Article The Problem of Scattering by a Mixture of Cracks and Obstacles Guozheng Yan Department of Mathematics, ... by Salim Messaoudi Consider the scattering of an electromagnetic time-harmonic plane wave by an infinite cylinder having an open crack Γ and a bounded domain D in R2 as cross section We assume ... scattering of an electromagnetic time-harmonic plane wave by an infinite cylinder having an open crackΓ and a bounded domain D in R2as cross section We assume that the cylinder ispossibly partially
Ngày tải lên: 21/06/2014, 20:20
Báo cáo hóa học: " Research Article RRES: A Novel Approach to the Partitioning Problem for a Typical Subset of System Graphs" potx
... incorporates several con-straints on the available silicon area (hardware capacity), Trang 3memory (software capacity), and latency as a timing con-straint The global criticality/local phase (GCLP) algorithm ... i FPGA,1,A i FPGA,2, , A i FPGA,k, A i ARM,1,A i ARM,2, , A i ARM,l, A i SC,1,A i SC,2, , A i SC,m . (2) In a similar fashion, the transfer timestt for the data trans-fer edgese iare ... Mei et al [11], the penalty reward tabu search proposed by Wiang-tong [9], and the GCLP algorithm of Kalavade [8] for the classical binary partitioning problem And a discussion of its feasibility
Ngày tải lên: 22/06/2014, 06:20
Báo cáo hóa học: "CONVERGENCE AND STABILITY OF A THREE-STEP ITERATIVE ALGORITHM FOR A GENERAL QUASI-VARIATIONAL INEQUALITY PROBLEM" doc
... existence of solution of general quasi-variational inequality problem and discuss the convergence analysis and stability of a three-step iterative algorithm for general quasi-variational inequality problem ... h, A, B, C, N, b, K, the element f , and the underlying space E, one can obtain from GQVIP (2.10) a number of known and new classes of variational and quasi-variational inequalities as special ... solving quasi-variational inequality problems in Banach spaces Motivated by these facts and the recent work going in this direction, we consider a general quasi-variational inequality problem (in
Ngày tải lên: 22/06/2014, 22:20
Báo cáo toán học: "A Tur´n Type Problem Concerning the Powers of the a Degrees of a Graph" ppsx
... Trang 1A Tur´ an Type Problem Concerning the Powers of theDegrees of a Graph Yair Caro ∗ and Raphael Yuster † Department of Mathematics University of Haifa-ORANIM, Tivon 36006, Israel. AMS ... B ∪ A 0 is a spanning subgraph of H(b + a 0 , k) where |A 0 | = a 0 In particular, if A 0 = A then G is a spanning subgraph of H(n, k). 2 Note that by Corollary 3.7 we have that if A 0 = A then ... and a b+1 is a neighbor of x b As in the previous cases we can obtain a P k of the form a0, a1, x1, a2, x2, a3, , a b −1 , x b −1 , a b , x b , a b+1 , a b+2 The only remaining case is that
Ngày tải lên: 07/08/2014, 06:20
Báo cáo toán học: "On a problem of Marco Buratti" pps
... Trang 1On a problem of Marco BurattiPeter Horak University of Washington Tacoma, WA 98402 horak@u.washington.edu Alexander Rosa McMaster University Hamilton, Ontario, Canada rosa@mcmaster.ca ... from paths in C1 and C2, respectively So they have the same initial vertex as before, their terminal vertices are now in [a1 + a2+ a3+ 1, a1+ a2+ a3 + d1], and in [a1+ a2+ a3+ d1+ 1, a1+ a2+ a3+ ... is a path P1 that is a linear realization of L1 = {1d 1 −k, d1 1 , , dk 1 }, so that |L1| + 1 is the initial vertex of P1 By the same lemma, there is a path P2 that is a linear realization of
Ngày tải lên: 07/08/2014, 21:21
processes of recovery from problem gambling a qualitative exploration
... services (Alegría et al., 2009) Raylu & Oei (2004) draw attention to several studies in which Maori of New Zealand, American Indians of North Dakota and Aboriginal groups in Canada all showed ... figures of problem gambling compared to the Caucasian population Also, betting habits of college students in America provided evidence that Asians have a rate of gambling participation approximately ... Similarly, relationships are often strained to breaking point as a result of money difficulties and the threat of divorce or separation from a partner can also act as a final prompt for a problem gambler
Ngày tải lên: 22/12/2014, 16:54
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