Results 81 to 90 of about 618,275 (223)

A Fix-Finite Approximation Theorem

open access: yesRocky Mountain Journal of Mathematics, 2004
Let \(E\) be a metrizable locally convex vector space whose topology is defined by a translation invariant metric \(d\) given by \(d(x,y)=\sum^\infty_{h=1}\frac1{2^n}\;\frac{p_n(x-y)}{1+p_n(x-y)}\).Let \(C(E)\) be the set of non-empty compact subsets of \(E\). For \(A,B\in C(E)\), the Hausdorff distance is defined as \(d_H(A,B)=\max\{P(A,B),P(B,A)\}\),
openaire   +3 more sources

Topological Minimax Theorems and Approximation

open access: yesJournal of Mathematical Analysis and Applications, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

O’Neill’s theorem for PL approximations

open access: yesJournal of Fixed Point Theory and Applications
AbstractWe present a version of O’Neill’s theorem (Theorem 5.2 in O’Neill in Am J Math 75(3):497–509, 1953) for piecewise linear approximations.
Govindan, Srihari, Pahl, Lucas
openaire   +2 more sources

On the Jackson type inequality in the dyadic BMO space

open access: yesМоделирование и анализ информационных систем, 2009
In this paper the direct theorem of the approximation theory for functions from the dyadic Besov space is proved. Together with the inverse theorem, it allows to solve an interpolation problem between dyadic BMO and the dyadic Besov space.
I. P. Irodova
doaj  

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