unit ball

unit ball

[′yü·nət ′bȯl]
(mathematics)
The set of all points in euclidean n-space whose distance from the origin is at most 1.
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Tenders are invited for Auto Valve Unit Ball Type To Escorts Part No.
1], we will exhibit two extreme points of its unit ball at distance less than one.
The 24 papers here consider such topics as characterizing holomorphic and meromorphic functions using maximum principles, generalizing trigonometric functions from different points of view, amenability as a hereditary property in some algebras of vector-valued functions, weighted composition operators on weighted sequence spaces, and the essential norm of operators on the Bergman space of vector-valued functions on the unit ball.
d-1]]) expected time algorithm that determines a ball of radius 1 + [epsilon] enclosing a weight at least as large as the weight of the optimal unit ball.
Nygaard and Werner [10] showed that in every infinite-dimensional uniform algebra, every nonempty relatively weakly open subset of its closed unit ball has diameter 2.
s], where B = b(0,1) is the unit ball centred in the origin, and the linear contact distribution function [H.
Stevic, On some integral operators on the unit polydisk and the unit ball, Taiwanese J.
Our spectral method is based on polynomial approximation on the unit ball [B.
In order to have a complete geometric description of all possible movements we propose the unit ball concept (Fig.
New topics have also been added including the compactness of the unit ball as a criterion of finite dimensionality of a normed linear space, the QR algorithm for finding the eigenvalues of a self-adjoint matrix, the Householder algorithm for turning such matrices into tridiagonal form, and the analogy between the convergence of the QR algorithm and Moser's theorem on the asymptotic behavior of the Toda flow as time tends to infinity.