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检索条件"主题词=Computer Appl. in Administrative Data Processing"
1314 条 记 录,以下是181-190 订阅
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ALGEBRAIC AND METRIC STRUCTURES IN INTERVAL ARITHMETIC AND appl.CATIONS
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COMPUTING 1970年 第2期5卷 144-&页
作者: MAYER, O Institut für Angewandte Mathematik und Rechenzentrum Universität Karlsruhe Englerstraße 2 D-75 Karlsruhe Bundesrepublik Deutschland
As in [1], [6] and [8] is shown, round-off errors in numerical computation can be controlled with the aid of the intrrval *** paper deals with the structure and the characteristics of the spaces occurring in interval ... 详细信息
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CONSTRUCTION OF DIFFERENCE METHODS FOR SOLUTION OF HYPERBOLIC SYSTEMS OF 1ST ORDER PARTIAL-DIFFERENTIAL EQUATIONS BY SPECTRAL DECOMPOSITIONS
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COMPUTING 1977年 第4期17卷 323-334页
作者: WOLF, G UNIV INNSBRUCK INST INFORMAT & NUMER MATH A-6010 INNSBRUCK AUSTRIA
Departing from the representation of a one-dimensional characteristic difference method by spectral decomposition, the description of a set of explicit one-step difference schemes for the solution of the initial-value... 详细信息
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SYNTAKTISCHE STRUKTUR FORMALER UND NATURLICHER SPRACHEN
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COMPUTING 1966年 第2期1卷 93-&页
作者: BAUER, FL Mathematisches Institut der Technischen Hochschule Arcisstraße 21 D-8 München
A development originating from symbolic logic, programming languages and the formal investigation of natural languages leads to the abstract mathematical definition of a language Σ [A] as a free semigroup over an alp... 详细信息
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DERIVATION-FREE METHODS WITHOUT SOLVING LINEAR EQUATIONS
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COMPUTING 1970年 第1期5卷 71-&页
作者: SCHMIDT, JW LEDER, D Bereich Numerische Mathematik Technische Universität Dresden Zellescher Weg 12-14 D-x 8027 Dresden Deutsche Demokratische Republik
Iteration methods are given for the solution of nonlinear equations in normed spaces requiring functionvalues and first-order divided differences. The latter may be replaced by derivations. The linear equations of eac... 详细信息
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BREAKING DOWN OF THE INTERVAL GAUSS ALGORITHM
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COMPUTING 1979年 第4期22卷 355-361页
作者: REICHMANN, K Institut für Angewandte Mathematik Albert-Ludwigs-Universität Hermann-Herder-Straße 10 D-7800 Freiburg i. Br. Bundesrepublik Deutschland
The following problem is treated: Under which conditions does the interval Gauß elimination work uncoditionally? It is shown by a counterexample that the condition 0 ∉ {detA|A∈[A]} is alwaysnecessary for the fea... 详细信息
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MIN-MAX-PRINCIPLES FOR EIGENVALUES OF A NONLINEAR EIGENVALUE PROBLEM
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COMPUTING 1972年 第3期9卷 189-&页
作者: WERNER, B Institut für Angewandte Mathematik Rothenbaumchaussee 41 D-2000 Hamburg 13 Deutschland
Under certain conditions the eigenvalues of the nonlinear eigenvalue problemM y=N(λ)y,R1y=R2 (λ)y, for ordinary, selfadjoint differential operatorsM, N (λ) and linear boundary operatorsR1,R2 (λ) can be characteriz... 详细信息
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ITERATIONSVERFAHREN BEI DER KONFORMEN ABBILDUNG
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COMPUTING 1966年 第2期1卷 146-+页
作者: NIETHAMMER, W Abteilung Rechenzentrum Mathematisches Institut der Universität Tübingen Wilhelmstr. 7 74 Tübingen
We consider the conformal mapping of the interior of the unit circle onto the interior of a general closed curve by the method ofTheodorsen. There is to solve a singular nonlinear integral equation. By discretisation ... 详细信息
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ACCELERATING CONVERGENCE OF CHEBYSHEV SERIES
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COMPUTING 1975年 第3期15卷 235-246页
作者: LOCHER, F UNIV TUBINGEN MATH INSTD-7400 TUBINGENFED REP GER
The convergence rate of the Chebyshev series of an analytic function depends on the singularities. In analgy to the Euler transformation we propose a method based on conformal mapping. By this means one obtains an imp... 详细信息
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EXPANDED MODEL FOR PAGING DRUMS
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COMPUTING 1979年 第2期23卷 99-118页
作者: BOLCH, G SCHMIDT, B Institut für Mathematische Maschinen und Datenverarbeitung IV Universität Erlangen-Nürnberg Martensstraße 3 D-8520 Erlangen Bundesrepublik Deutschland
The throughput of a computer system depends especially on the performance of the secondary storage. In order to evaluate performance it is necessary to have models of drum and disk storage units. A good summary of the... 详细信息
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ARITHMETIC OF COMPLEX SETS
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COMPUTING 1980年 第2-3期24卷 97-105页
作者: NICKEL, K Institut für Angewandte Mathematik Universität Freiburg i. Br. Hermann-Herder-Strasse 10 D-7800 Freiburg i. Br. Federal Republic of Germany
Let\(\mathbb{I}\)(ℝ) be the set of all real closed intervals and letΩ1:= {+, −, ×, /} be the set of arithmetic operators of ℝ. By extendingΩ1 from ℝ to\(\mathbb{I}\)(ℝ) as usual one finds that\(\mathbb{I}\)(ℝ) ... 详细信息
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