作者: HALO 時(shí)間: 2025-3-21 23:45 作者: labyrinth 時(shí)間: 2025-3-22 03:36
https://doi.org/10.1007/978-3-7091-7023-6algorithms; calculus; differential equation; finite element method; mathematics; complexity作者: 生氣的邊緣 時(shí)間: 2025-3-22 06:03
978-3-211-81832-9Springer-Verlag/Wien 1984作者: Glycogen 時(shí)間: 2025-3-22 09:16
Safety Case Practice - Meet the Challengerror improvement can be achieved which is controlled by a direct defect correction (or: residual improvement). The underlying mathematical theory is presented which is essentially based on the Inverse Function Theorem. As applications, defect corrections via projection methods for linear problems as作者: 無聊的人 時(shí)間: 2025-3-22 14:27
https://doi.org/10.1007/1-84628-447-3ative aggregation methods for systems of linear equations are shown to be particular cases of a unifying framework based on the defect correction principle. Several convergence proofs using contraction arguments are given.作者: 無聊的人 時(shí)間: 2025-3-22 17:47 作者: 異端 時(shí)間: 2025-3-23 00:00 作者: 比賽用背帶 時(shí)間: 2025-3-23 04:05
The Rocky Road from Plan to Market is an iterative process in which two basic discretization schemes are used: one with and one without artificial diffusion. The resulting method is stable and yields a 2nd order accurate approximation in the smooth parts of the solution, without using any special directional bias in the discretizati作者: CARE 時(shí)間: 2025-3-23 08:27
Developments in Russian Politics 4ith an automatic verification of the correctness. Examples of such problems are systems of linear equations, over- and underdetermined systems of linear equations, algebraic eigenvalue problems, nonlinear systems, polynomial zeros, evaluation of arithmetic expressions, linear, quadratic and convex p作者: 硬化 時(shí)間: 2025-3-23 13:08 作者: 粗俗人 時(shí)間: 2025-3-23 17:37 作者: 服從 時(shí)間: 2025-3-23 18:23 作者: BLANK 時(shí)間: 2025-3-23 22:58
https://doi.org/10.1007/1-84628-447-3The application of suitable defect correction algorithms to stiff differential equations is analyzed. The .-convergence properties of such algorithms are discussed.作者: avenge 時(shí)間: 2025-3-24 02:27 作者: nugatory 時(shí)間: 2025-3-24 08:07
Introduction: From Communism to Democracy?We combine four recently developed methodologies to provide a computational basis for function space problems (e. g. differential equations, integral equations …).作者: 允許 時(shí)間: 2025-3-24 11:35 作者: 散布 時(shí)間: 2025-3-24 17:12 作者: Neolithic 時(shí)間: 2025-3-24 19:23
Defect Correction Algorithms for Stiff Ordinary Differential EquationsThe application of suitable defect correction algorithms to stiff differential equations is analyzed. The .-convergence properties of such algorithms are discussed.作者: Admire 時(shí)間: 2025-3-25 01:32
Simultaneous Newton’s Iteration for the EigenproblemFor an ill-conditioned eigenproblem (close eigenvalues and/or almost parallel eigenvectors) it is advisable to group some eigenvalues and to compute a basis of the corresponding invariant subspace. We show how Newton’s method may be used for the iterative refinement of an approximate invariant subspace.作者: 煩憂 時(shí)間: 2025-3-25 05:46 作者: 向下 時(shí)間: 2025-3-25 07:45
Defect Corrections and Hartree-Fock MethodIn the context of Hartree-Fock methods for the Schr?dinger equation a special class of EVPs for ODEs on infinite intervals is shown to play a crucial role in the computation time. The usual discretization is combined with two very efficient ways to choose the finite boundary conditions. Then two kinds of defect corrections are applied.作者: 馬賽克 時(shí)間: 2025-3-25 15:20 作者: Trigger-Point 時(shí)間: 2025-3-25 16:11 作者: debble 時(shí)間: 2025-3-25 23:36
Understanding the Risks Posed by Management of this approach is the domain decomposition method, where only (overlapping) local problems are combined. Such a combination of local subproblems can be solved efficiently by a multi-grid iteration. We describe a multi-grid variant that is suited for the use of parallel processors.作者: 極為憤怒 時(shí)間: 2025-3-26 01:46
Local Defect Correction Method and Domain Decomposition Techniques of this approach is the domain decomposition method, where only (overlapping) local problems are combined. Such a combination of local subproblems can be solved efficiently by a multi-grid iteration. We describe a multi-grid variant that is suited for the use of parallel processors.作者: 表示向下 時(shí)間: 2025-3-26 04:21
0344-8029 of an operator equation. This class includes many well-known techniques (e.g. Newton‘s method) but also some novel approaches which have turned out to be quite efficient. Meanwhile a large number of papers and reports, scattered over many journals and institutions, have appeared in this area. There作者: 一個(gè)姐姐 時(shí)間: 2025-3-26 10:50
The Rocky Road from Plan to Marketable and yields a 2nd order accurate approximation in the smooth parts of the solution, without using any special directional bias in the discretization. The method works well also for problems with interior or boundary layers.作者: 暗語(yǔ) 時(shí)間: 2025-3-26 15:56
Developments in Russian Politics 4ar equations, algebraic eigenvalue problems, nonlinear systems, polynomial zeros, evaluation of arithmetic expressions, linear, quadratic and convex programming and others. The new methods apply for these problems over the space of real numbers, complex numbers as well as real intervals and complex intervals.作者: extract 時(shí)間: 2025-3-26 17:13
Representative Power and the Russian Statech extends the earlier one to problems with discontinuous data and mixed systems of differential and algebraic conditions. Finally, an example of application of this code to two-point ray tracing on piece-wise continuous media is given.作者: 責(zé)問 時(shí)間: 2025-3-27 00:20
On a Principle of Direct Defect Correction Based on A-Posteriori Error Estimates well as for nonlinear problems are analyzed. For a linear model problem of a singularly perturbed one-dimensional boundary value problem, computational results are presented where one defect correction step is performed using a self-adaptive finite element method.作者: decipher 時(shí)間: 2025-3-27 02:29
Fast Adaptive Composite Grid (FAC) Methods: Theory for the Variational Case meet practical objectives, does not suffer from some of the practical limitations of (“natural”) versions of LDC and MLAT, and lends itself to a simple theory. The latter is the subject of this paper.作者: Foment 時(shí)間: 2025-3-27 06:27 作者: visual-cortex 時(shí)間: 2025-3-27 09:47
Book 1984rator equation. This class includes many well-known techniques (e.g. Newton‘s method) but also some novel approaches which have turned out to be quite efficient. Meanwhile a large number of papers and reports, scattered over many journals and institutions, have appeared in this area. Therefore, a wo作者: 閑聊 時(shí)間: 2025-3-27 16:00 作者: SPECT 時(shí)間: 2025-3-27 19:53
Solution of Linear and Nonlinear Algebraic Problems with Sharp, Guaranteed Boundsar equations, algebraic eigenvalue problems, nonlinear systems, polynomial zeros, evaluation of arithmetic expressions, linear, quadratic and convex programming and others. The new methods apply for these problems over the space of real numbers, complex numbers as well as real intervals and complex intervals.作者: 帶來墨水 時(shí)間: 2025-3-28 00:44
Deferred Corrections Software and Its Application to Seismic Ray Tracingch extends the earlier one to problems with discontinuous data and mixed systems of differential and algebraic conditions. Finally, an example of application of this code to two-point ray tracing on piece-wise continuous media is given.作者: ORBIT 時(shí)間: 2025-3-28 02:11 作者: 威脅你 時(shí)間: 2025-3-28 09:57 作者: DEAWL 時(shí)間: 2025-3-28 12:01 作者: 披肩 時(shí)間: 2025-3-28 18:30
On a Principle of Direct Defect Correction Based on A-Posteriori Error Estimatesrror improvement can be achieved which is controlled by a direct defect correction (or: residual improvement). The underlying mathematical theory is presented which is essentially based on the Inverse Function Theorem. As applications, defect corrections via projection methods for linear problems as作者: choleretic 時(shí)間: 2025-3-28 19:01 作者: 基因組 時(shí)間: 2025-3-29 00:56
Local Defect Correction Method and Domain Decomposition Techniquesa subdomain. The convergence rate of the local defect correction iteration is proved to be proportional to a certain positive power of the step size. The accuracy of the converged solution can be described. Numerical examples confirm the theoretical results. We discuss multi-grid iterations convergi作者: 可行 時(shí)間: 2025-3-29 04:33
Fast Adaptive Composite Grid (FAC) Methods: Theory for the Variational Caseed to local defect corrections (LDC) and multilevel adaptive techniques (MLAT), an important difference is that FAC forces the user to specify the discrete problem on the finest composite grid — it is not rather an implicit result of the adaptive process. The advantages are that FAC can more readily作者: Pseudoephedrine 時(shí)間: 2025-3-29 08:49 作者: 旋轉(zhuǎn)一周 時(shí)間: 2025-3-29 14:33 作者: Flatus 時(shí)間: 2025-3-29 19:23
Deferred Corrections Software and Its Application to Seismic Ray Tracingary value problems, but mentioning also some work on partial differential equations. Then we describe the latest code on the PASVA series (No. 4), which extends the earlier one to problems with discontinuous data and mixed systems of differential and algebraic conditions. Finally, an example of appl作者: ACRID 時(shí)間: 2025-3-29 20:25
Numerical Engineering: Experiences in Designing PDE Software with Selfadaptive Variable Step Size/Va order difference methods are presented. The error is estimated by the difference of difference formulae, using members of families of difference formulae. Basic solution methods are developed for the solution of the BVP and the IVP for ODE’s. These methods are extended and combined to solution meth作者: INERT 時(shí)間: 2025-3-29 23:55
Book 1984list of the participants may be found in the Appendix. Most of the colleagues who presented formal lectures at the meeting agreed to publish their reports in this volume. It would be presumptuous to call this book a state-of-the-art report in defect corrections. It is rather a collection of snapshot作者: CODE 時(shí)間: 2025-3-30 07:03 作者: 討人喜歡 時(shí)間: 2025-3-30 11:28 作者: 一致性 時(shí)間: 2025-3-30 13:51 作者: interrupt 時(shí)間: 2025-3-30 18:34
Alessandro Birolinistellung der Geschlechter reagiert hat. Innerhalb des Bereichs des ?ffentlichen Personennahverkehrs (?PNV) gilt die TTC als Pionier bei der Einführung von Chancengleichheitsprogrammen fir weiblichen Angestellte und als ein Unternehmen, das sich den Belangen der Gleichstellung im Dienstleistungsangeb作者: RALES 時(shí)間: 2025-3-30 21:29
