Strongly Unique Minimal Projections on Hyperplanes

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Norms of Minimal Projections

It is proved that the projection constants of twoand three-dimensional spaces are bounded by 4/3 and (1 + √ 5)/2, respectively. These bounds are attained precisely by the spaces whose unit balls are the regular hexagon and dodecahedron. In fact, a general inequality for the projection constant of a real or complex n-dimensional space is obtained and the question of equality therein is discussed...

متن کامل

New Results on Minimal Strongly Imperfect Graphs

The characterization of strongly perfect graphs by a restricted list of forbidden induced subgraphs has remained an open question for a long time. The minimal strongly imperfect graphs which are simultaneous imperfect are only odd holes and odd antiholes ( E. Olaru, [9]), but the entire list is not known, in spite of a lot of particular results in this direction. In this paper we give some new ...

متن کامل

Strongly minimal pseudofinite structures

In this note we point out that any strongly minimal pseudofinite structure (or set) is unimodular in the sense of [1], [5], [2], and hence measurable in the sense of Macpherson and Steinhorn [3], [2] as well as 1-based. The argument, involving nonstandard finite cardinalities, is straightforward. A few people asked about this issue in private conversations and communications, in particular Mart...

متن کامل

On Involution Rings with Unique Minimal *-subring

The structure of certain involution rings having a unique minimal *-subring, is described.

متن کامل

A lower bound of the strongly unique minimal projection constant of lninfinity, n>=3

In this paper we give a lower bound for the strongly unique minimal projection (with norm one) constant (SUP-constant) onto some (n − k)-dimensional subspaces of l ∞ (n ≥ 3, 1 ≤ k ≤ n−1). By Proposition 1 of this paper, each k-dimensional Banach space with polytope unit ball with m (k − 1)-faces is isometrically isomorphic to a subspace of lk+m−1 ∞ . As such the aforementioned estimation can be...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Approximation Theory

سال: 1994

ISSN: 0021-9045

DOI: 10.1006/jath.1994.1056