Zaokrouhlovací chyba při numerickém počítání s hlediska statistického
Zerfallende Tridiagonalmatrizen und aneinandergesetzte Sturmsche Ketten.
Zero Dissipative DIRKN Pairs of Order 5(4) for Solving Special Second Order IVPs
For initial value problem (IVPs) in ordinary second order differential equations of the special form possessing oscillating solutions, diagonally implicit Runge–Kutta–Nystrom (DIRKN) formula-pairs of orders 5(4) in 5-stages are derived in this paper. The method is zero dissipative, thus it possesses a non-empty interval of periodicity. Some numerical results are presented to show the applicability of the new method compared with existing Runge–Kutta (RK) method applied to the problem reduced to...
Zero finding for increasing Lipschitz functions. (Summary).
Zero points of quadratic matrix polynomials
Our aim is to classify and compute zeros of the quadratic two sided matrix polynomials, i.e. quadratic polynomials whose matrix coefficients are located at both sides of the powers of the matrix variable. We suppose that there are no multiple terms of the same degree in the polynomial , i.e., the terms have the form , where all quantities are square matrices of the same size. Both for classification and computation, the essential tool is the description of the polynomial by a matrix equation...
Zeros of -functions of elliptic curves. (Zéros des fonctions de courbes elliptiques.)
Zeros of the Modified Hankel Function.
Zeros of unilateral quaternionic polynomials.
Zero-Stability Properties of the Three-Ordinate Variable Step-size Variable Formula Methods.
Zienkiewicz–Zhu error estimators on anisotropic tetrahedral and triangular finite element meshes
We consider a posteriori error estimators that can be applied to anisotropic tetrahedral finite element meshes, i.e. meshes where the aspect ratio of the elements can be arbitrarily large. Two kinds of Zienkiewicz–Zhu (ZZ) type error estimators are derived which originate from different backgrounds. In the course of the analysis, the first estimator turns out to be a special case of the second one, and both estimators can be expressed using some recovered gradient. The advantage of keeping two different...
Zienkiewicz–Zhu error estimators on anisotropic tetrahedral and triangular finite element meshes
We consider a posteriori error estimators that can be applied to anisotropic tetrahedral finite element meshes, i.e. meshes where the aspect ratio of the elements can be arbitrarily large. Two kinds of Zienkiewicz–Zhu (ZZ) type error estimators are derived which originate from different backgrounds. In the course of the analysis, the first estimator turns out to be a special case of the second one, and both estimators can be expressed using some recovered gradient. The advantage of keeping two...
Zjišťování funkční závislosti mezi třemi tabelovánými veličinami pomocí spojnicových nomogramů
Zur Anwendung kubischer Splines auf die Richardson-Extrapolation.
Zur Behandlung des euklidischen Algorithmus bei Polynomen mit einem programmierbaren Taschen-Rechner.
Zur Behandlung von Eigenwertaufgaben mit nichtlinear auftretendem Parameter.
Zur Bewertung von Schätzungen bei der gewöhnlichen Regressionsanalyse.
Zur effektiven Lösung von booleschen, quadratischen Optimierungsproblemen (On the Efficient Treatment of the Boolean Quadratic Programming Problem)
Zur Erzeugung von Distanzmtrizen beim Rundreiseproblem
Zur Existenz optimaler Quadraturformeln mit freien Knoten bei Integration analytischer Funktionen.
Zur Interpolation und Integration differenzierbarer periodischer Funktionen.