Results 21 to 30 of about 91 (84)

Projection solutions of Frobenius‐Perron operator equations

, 1991
International Journal of Mathematics and Mathematical Sciences, Volume 16, Issue 3, Page 465-484, 1993.
Jiu Ding, Tien Tien Li
wiley   +1 more source

Steklov Type Operators and Functional Equations

Annales Mathematicae Silesianae
We consider sequences of Steklov type operators and an associated functional equation. For a suitable sequence, we establish asymptotic formulas.
Motronea Gabriela, Popa Dorian, Raşa Ioan   +2 more
doaj   +1 more source

The Lower Estimate for Bernstein Operator [PDF]

, 2013
MSC 2010: 41A10, 41A15, 41A25, 41A36For functions belonging to the classes C2[0; 1] and C3[0; 1], we establish the lower estimate with an explicit constant in approximation by Bernstein polynomials in terms of the second order Ditzian-Totik modulus of ...
Tachev, Gancho T., Gal, Sorin G.
core  

On The Computation Of Periodic Spline Wavelets

, 1995
For many applications in signal processing and numerical analysis, it is important to use periodic scaling functions and wavelets. The aim of this paper is a constructive approach to periodic spline wavelets and to related decomposition and ...
Manfred Tasche, Tasche, Manfred, Gerlind Plonka, Plonka-Hoch, Gerlind   +3 more
core   +1 more source

Approximation by interpolation operators with piecewise polynomial basis functions

Demonstratio Mathematica
This paper focuses on approximation by interpolation operators with piecewise polynomial basis functions. It first shows that the interpolation operator introduced by Zhan, Huang and Liu (A class of interpolation basis functions with excellent properties,
Mei Ying, Yu Dansheng
doaj   +1 more source

On Feller processes with sample paths in Besov spaces

, 2020
. Under mild regularity assumptions on its domain the infinitesimal generator of a Feller process is known to be a pseudo-differential operator. We give a simple condition on the symbol of the generator in order to characterize the smoothness of the ...
Ann, Math
core  

Under consideration for publication in Euro. Jnl of Applied Mathematics 1 Reconstruction of Smooth Functions from Incomplete Data

, 2007
A method for the reconstruction of a smooth function from incomplete data by means of Schoenberg’s variation diminution and Hermite interpolation is presented.
Peter Massopust
core  

Basc: Constrained Approximation by Semidefinite Programming

, 2016
This article details the theoretical grounds for a semidefinite-programming-based method that computes best approximants by splines under some general constraints and relative to several function norms, notably the max-norm.
Vladlena Powers, Simon Foucart
core  

Prevalence of cognitive impairments and strengths in the early course of psychosis and depression. [PDF]

Psychol Med, 2023
Stainton A, Chisholm K, Griffiths SL, Kambeitz-Ilankovic L, Wenzel J, Bonivento C, Brambilla P, Iqbal M, Lichtenstein TK, Rosen M, Antonucci LA, Maggioni E, Kambeitz J, Borgwardt S, Riecher-Rössler A, Andreou C, Schmidt A, Schultze-Lutter F, Meisenzahl E, Ruhrmann S, Salokangas RKR, Pantelis C, Lencer R, Romer G, Bertolino A, Upthegrove R, Koutsouleris N, Allott K, Wood SJ, PRONIA Consortium, PRONIA Consortium.   +30 more
europepmc   +1 more source

Energy wavelet analysis of time series

, 2002
In this paperwe will approach the analysis of time series by the discrete Haar wavelet trasnform and by the energy distribution. it is shown that the wavelet coefficients are strictly related to the scheme of finite differences, thus giving information ...
Ciancio, Armando, Cattani, Carlo
core