✦ LIBER ✦

Norms of some projections on C[a, b]

✍ Scribed by William A Light

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 220 KB
Volume: 20
Category: Article
ISSN: 0021-9045
DOI: 10.1016/0021-9045(77)90018-1

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

On the minimal norms of polynomial proje

On the minimal norms of polynomial projections

✍ Knut Petras 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 273 KB

Norms of analytic interpolation projecti

Norms of analytic interpolation projections on general domains

✍ J.G Clunie; J.C Mason 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 453 KB

Extremal points for some sets of project

Extremal points for some sets of projections on C(I)

✍ William A Light 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 320 KB

On the Norm of the Metric Projections

✍ Fernando Mazzone 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 87 KB

Let X be a Banach space. Given M a subspace of X we denote with P M the metric projection onto M. We define ?(X ) :=sup [&P M &: M a proximinal subspace of X]. In this paper we give a bound for ?(X ). In particular, when X=L p , we obtain the inequality &P M & 2 |2Â p&1| , for every subspace M of L

On the submultiplicativeness of some mat

On the submultiplicativeness of some matrix norms

✍ J.K. Merkoski 📂 Article 📅 1981 🏛 Elsevier Science ⚖ 197 KB

Extensions of Pure States and Projection

Extensions of Pure States and Projections of Norm One

✍ R.J. Archbold 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 159 KB

We show that the extension property for pure states of a C\*-subalgebra B of a C\*-algebra A leads to the existence of a projection of norm one R: A Ä B in the case where B is liminal with Hausdorff primitive ideal space. Furthermore, R is given by a ``Dixmier process'' in which the averaging is eff