liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Uniform bounds for limited sets and applications to bounding sets.
Linköping University, The Institute of Technology. Linköping University, Department of Mathematics, Applied Mathematics.
2000 (English)In: Mathematica Scandinavica, ISSN 0025-5521, Vol. 86, no 2, 223-243 p.Article in journal (Refereed) Published
Abstract [en]

A set D in a Banach space E is limited if lim sup(k-->infinity) sup(z epsilon D)\phi k(z)\ > 0 double right arrow sup(\\z\\=1) lim sup(k-->infinity) \phi k(z)\ > 0 for every sequence (phi k) subset of E*. It is studied how this implication can be quantified, for example if there exists a constant C > 0 such that lim sup(k-->infinity)sup(z epsilon D)\phi k(z)\ = 1 double right arrow sup\\z\\ = 1 lim sup(k-->infinity) \phi k(z)\ greater than or equal to C for every sequence (phi k) subset of E*, is studied. Relatively compact sets and limited sets in l(infinity) - among others the unit vectors - have uniform bounds in this sense. A fundamental example of a limited set without any uniform bounds is constructed. A set D is called bounding if f (D) is bounded for every entire function on E. That bounding sets are uniformly limited and that strongly bounding sets are limited in the strongest sense are proved. Examples show that the convex hull of bounding sets in general are not bounding and that bounding sets in general does not have Grothendieck's incapsulating property as relatively weakly compact sets have.

Place, publisher, year, edition, pages
2000. Vol. 86, no 2, 223-243 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-49669OAI: diva2:270565
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-14

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Josefson, Bengt
By organisation
The Institute of TechnologyApplied Mathematics
In the same journal
Mathematica Scandinavica
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 14 hits
ReferencesLink to record
Permanent link

Direct link