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Subjects
41-XX Approximations and expansions
41Axx Approximations and expansions
41A35 Approximation by operators (in particular, by integral operators)

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Displaying 1 – 7 of 7

The Baskakov operators for functions of two variables.

M. Gurdek, L. Rempulska, M. Skorupka (1999)

Collectanea Mathematica

The direct and converse inequalities for Jackson-type operators on spherical cap.

Wang, Yuguang, Cao, Feilong (2009)

Journal of Inequalities and Applications [electronic only]

The discrete Fourier-Transform an Lp approximation of functions.

Philip Brenner, David C. Shreve (1975)

Mathematica Scandinavica

The strong unicity constant for projections.

Lipieta, Agnieska (2006)

Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Universitatis Iagellonicae Acta Mathematica

Tractability of tensor product linear operators in weighted Hilbert spaces.

Woźniakowski, Henryk (2001)

Georgian Mathematical Journal

Trivariate approximation operators on cube by parametric extensions.

Cătinaş, Teodora (2002)

Acta Universitatis Apulensis. Mathematics - Informatics

Two-dimensional real symmetric spaces with maximal projection constant

Bruce Chalmers, Grzegorz Lewicki (2000)

Annales Polonici Mathematici

Let V be a two-dimensional real symmetric space with unit ball having 8n extreme points. Let λ(V) denote the absolute projection constant of V. We show that $λ (V) \leq λ (V_{n})$ where $V_{n}$ is the space whose ball is a regular 8n-polygon. Also we reprove a result of [1] and [5] which states that $4 / π = λ (l ₂^{(2)}) \geq λ (V)$ for any two-dimensional real symmetric space V.

Currently displaying 1 – 7 of 7

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