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Maximally convergent rational approximants of meromorphic functions

Hans-Peter Blatt (2015)

Banach Center Publications

Let f be meromorphic on the compact set E ⊂ C with maximal Green domain of meromorphy E ρ ( f ) , ρ(f) < ∞. We investigate rational approximants r n , m of f on E with numerator degree ≤ n and denominator degree ≤ mₙ. We show that a geometric convergence rate of order ρ ( f ) - n on E implies uniform maximal convergence in m₁-measure inside E ρ ( f ) if mₙ = o(n/log n) as n → ∞. If mₙ = o(n), n → ∞, then maximal convergence in capacity inside E ρ ( f ) can be proved at least for a subsequence Λ ⊂ ℕ. Moreover, an analogue of Walsh’s...

Mean-periodic functions.

Berenstein, Carlos A., Taylor, B.A. (1980)

International Journal of Mathematics and Mathematical Sciences

Meshless Polyharmonic Div-Curl Reconstruction

M. N. Benbourhim, A. Bouhamidi (2010)

Mathematical Modelling of Natural Phenomena

In this paper, we will discuss the meshless polyharmonic reconstruction of vector fields from scattered data, possibly, contaminated by noise. We give an explicit solution of the problem. After some theoretical framework, we discuss some numerical aspect arising in the problems related to the reconstruction of vector fields

Metric projections and best approximants in Bochner-Orlicz spaces.

Ryszard Pluciennik, Yuwen Wang (1994)

Revista Matemática de la Universidad Complutense de Madrid

In the first section of this paper there are given criteria for strict convexity and smoothness of the Bochner-Orlicz space with the Orlicz norm as well as the Luxemburg norm. In the second one that geometrical properties are applied to the characterization of metric projections and zero mean valued best approximants to Bochner-Orlicz spaces.

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