Results 221 to 230 of about 3,117,111 (256)
Some of the next articles are maybe not open access.
Topology and its Applications, 2019
Abstract We import into continuum theory the notion of extreme point of a convex set from the theory of topological vector spaces. We explore how extreme points relate to other established types of “edge point” of a continuum; for example we prove that extreme points are always shore points, and that any extreme point is also non-block if the ...
Paul Bankston, Daron Anderson
openaire +2 more sources
Abstract We import into continuum theory the notion of extreme point of a convex set from the theory of topological vector spaces. We explore how extreme points relate to other established types of “edge point” of a continuum; for example we prove that extreme points are always shore points, and that any extreme point is also non-block if the ...
Paul Bankston, Daron Anderson
openaire +2 more sources
Disappearance of extreme points
Proceedings of the American Mathematical Society, 1983It is shown that every separable Banach space which contains an isomorphic copy of c 0 {c_0} is isomorphic to a strictly convex space E E such that no point of E E is an extreme point of the unit ball of E ∗ ∗
openaire +2 more sources
1997
The fact that the weighted equilibrium potential simultaneously solves a certain Dirichlet problem on connected components of C\S w coupled with the fact that the Fekete points are distributed according to the equilibrium distribution leads to a numerical method for determining Dirichlet solutions.
Edward B. Saff, Vilmos Totik
openaire +2 more sources
The fact that the weighted equilibrium potential simultaneously solves a certain Dirichlet problem on connected components of C\S w coupled with the fact that the Fekete points are distributed according to the equilibrium distribution leads to a numerical method for determining Dirichlet solutions.
Edward B. Saff, Vilmos Totik
openaire +2 more sources
SIAM Review, 1968
Abstract : It is shown that if A is an integral matrix having linearly independent rows, then the extreme points of the set of nonnegative solutions to Ax = b are integral for all integral b if and only if the determinant of every basis matrix is plus or minus 1.
George B. Dantzig, Arthur F. Veinott
openaire +2 more sources
Abstract : It is shown that if A is an integral matrix having linearly independent rows, then the extreme points of the set of nonnegative solutions to Ax = b are integral for all integral b if and only if the determinant of every basis matrix is plus or minus 1.
George B. Dantzig, Arthur F. Veinott
openaire +2 more sources
Estimation of the extreme value and the extreme points
Annals of the Institute of Statistical Mathematics, 1987Letf be a continuous function defined on some domainA andX 1,X 2, ... be iid random variables. We estimate the extreme value off onA by studying the limiting distribution of min {f(X 1), ...,f(X n )} or max {f(X 1), ...,f(X n )} properly normalized. Sufficient conditions for the existence of the limiting distribution as well as a characterization of ...
openaire +2 more sources
2010
In computational physics very often roots of a function have to be determined. A related problem is the search for local extrema which for a smooth function are roots of the gradient. In one dimension bisection is a very robust but rather inefficient root finding method.
openaire +2 more sources
In computational physics very often roots of a function have to be determined. A related problem is the search for local extrema which for a smooth function are roots of the gradient. In one dimension bisection is a very robust but rather inefficient root finding method.
openaire +2 more sources
Neighborhoods of extreme points
Israel Journal of Mathematics, 1967An examination of relationship between two neighborhood systems (relative to two linear topologies) of extreme points yields a unified approach to some known and new results, among which are Bessaga-Pelczynski’s theorem on closed bounded convex subsets of separable conjugate Banach spaces and Ryll-Nardzewski’s fixed point theorem.
openaire +2 more sources
1997
The (first) conjugate point η(a) was defined in Chapter 0 as the least value c > a such that some nontrivial solution has n zeros in [a, c], including multiplicities. It is known that η(a) is a continuous increasing function.
openaire +2 more sources
The (first) conjugate point η(a) was defined in Chapter 0 as the least value c > a such that some nontrivial solution has n zeros in [a, c], including multiplicities. It is known that η(a) is a continuous increasing function.
openaire +2 more sources