Results 261 to 270 of about 2,763,716 (303)

On V-Extremal Solutions of the Moment Problem

Mathematical Notes, 2002
A nondecreasing function \(\sigma(u)\), \(-\infty 0\), and \(\sigma_1(u)\) and \(\sigma_2(u)\) are solutions of the same moment problem different from \(\sigma(u)\). The set of all solutions of the indeterminate moment problem (1) is described be the Nevanlinna representation: Let the class of Nevanlinna functions \(N\) supplemented with the constant \
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Extreme Vibration Solutions

Aerospace Testing International
How to solve the high-temperature challenge when measuring extreme vibrations
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Extremal Properties of Solutions of Stochastic Equations

Theory of Probability & Its Applications, 1985
Translation from Teor. Veroyatn. Primen. 29, No.2, 209-221 (Russian) (1984; Zbl 0543.60064).
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Extremal Solutions of Multivalued Differential Equations

Results in Mathematics, 1988
Consider an initial value problem (1) \(u'\in F(t,u)\) a.e. on J, \(u(0)=x_ 0\) where \(J=[0,a]\subset R\), \(X=R\) n and F:J\(\times X\to 2\) \(X\setminus \phi\) is a multivalued map. Let \(K\subset R\) n be a cone and \(\leq\) the partial ordering defined by K, i.e. \(x\leq y\) iff y-x\(\in K\).
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Equations in predicates and their extreme solutions

1990
In the previous chapter we have encountered a number of statements S for which the predicate transformers wlp.S and wp.S were given in closed form. In the next chapter we shall encounter the statement DO, for which the predicates wlp.DO.X and wp.DO.X will be defined as solutions of equations of the ...
Edsger W. Dijkstra, Carel S. Schölten
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Extremal solutions of classes of multivalued differential equations

Applied Mathematics and Computation, 2003
The paper is concerned with the existence of extremal solutions to a class of multivalued boundary value problems and evolution inclusion with m-accretive operators. Recently, similar problems have been considered in many papers. For example, more deeper results of such kind can be found in the book by \textit{Sh. Hu} and \textit{N. S.
Ahmed Gamal Ibrahim, A. G. Gomaa
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On the Components of Extremal Solutions of Second Order Systems

SIAM Journal on Mathematical Analysis, 1977
Sign properties of components of extremal solutions of the linear system \[ x'' + A(t)x = 0, \] where $A(t)$ is a continuous $n \times n$ matrix, are investigated. For most of the considerations, $A(t)$ is assumed to be symmetric. The proofs are based on variational arguments.
Ahmad, Shair, Lazer, Alan C.
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Solution of an extremal problem in operator theory

1983
Let \(E_ 1,E_ 2\) be normed linear spaces of 2\(\pi\)-periodic integrable functions, \(\Pi_ n\) be the set of all trygonometric polynomials of the order \(\leq n\). The author gives a complete solution of the problem of constructing an extremal operator in the class \(\Omega_ n^{(k)}\) of all linear operators \(u_ n(f,x):E_ 1\to E_ 2\) such that \(u_ n(
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Bioenergetics and solute uptake under extreme conditions

Extremophiles, 2001
The ion and particularly the proton and sodium ion permeabilities of cytoplasmic membranes play crucial roles in the bioenergetics of microorganisms. The proton and sodium permeabilities of membranes increase with temperature. Psychrophilic and mesophilic bacteria and mesophilic, (hyper)thermophilic, and halophilic archaea are capable of adjusting the ...
Albers, Sonja Verena, Vossenberg, Jack L., Driessen, Arnold J. M., Konings, Wil N.   +3 more
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Extremal Solutions in the Marginal Problem

1991
This is a review paper collecting both older and recent progress in the field of twodimensional marginal problem concerning the extreme points of the set of solutions. Some new results in the characterization of extremal solutions are presented in Section 5.
Viktor Benes, Josef Stepan
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