2 citations · 3 across the 4 of their papers we have counts for
3 papers · 1 filter
Some Applications of the Hahn-Banach Separation Theorem
Frank Deutsch, Hein Hundal, Ludmil Zikatanov
We show that a single special separation theorem (namely, a consequence of the geometric form of the Hahn-Banach theorem) can be used to prove Farkas type theorems, existence theor…
Visible Points in Convex Sets and Best Approximation
Frank Deutsch, Hein Hundal, Ludmil Zikatanov
The concept of a visible point of a convex set relative to a given point is introduced. A number of basic properties of such visible point sets is developed. In particular, it is s…
Characterizing arbitrarily slow convergence in the method of alternating projections
H. H. Bauschke, F. Deutsch, H. Hundal
In 1997, Bauschke, Borwein, and Lewis have stated a trichotomy theorem that characterizes when the convergence of the method of alternating projections can be arbitrarily slow. How…