Statistical deferred weighted B $\mathcal{B}$-summability and its applications to associated approximation theorems [PDF]
The notion of statistical weighted B $\mathcal{B}$-summability was introduced very recently (Kadak et al. in Appl. Math. Comput. 302:80–96, 2017).
T. Pradhan +3 more
doaj +2 more sources
Tauberian theorems for weighted means of double sequences in intuitionistic fuzzy normed spaces [PDF]
We define weighted mean summability method of double sequences in intuitionistic fuzzy normed spaces(IFNS), and obtain necessary and sufficient Tauberian conditions under which convergence of double sequences in IFNS follows from their weighted mean ...
Narayan Mishra Lakshmi +3 more
doaj +1 more source
On the approximation of integrable functions by some special matrix means of Fourier series
The results concerninig pointwise approximation and product of summability methods corresponding to the theorems of Xh. Z. Krasniqi [Poincare J. Anal. Appl., 2014, 1, 1-8] and W. Łenski and B. Szal [Math. Slovaca, 2016, 66(6), 1-12] are generalized. Some
Kranz Radosława, Rzepka Aleksandra
doaj +1 more source
Approximation of Analytic Functions by Universal Vallee-Poussin Sums on the Chebyshev Polynomials
As it is known, Chebyshev polynomials provide the best uniform approach of a function. They are a special case of Faber polynomials. A. I. Shvay (1973) proved that the Vallee-Poussin sums are the best approach apparatus in comparison with the partial ...
L.K. Dodunova, A.A. Ageikin
doaj +1 more source
The results generalizing some theorems on N, pnE, γ summability are shown. The same degrees of pointwise approximation as in earlier papers by weaker assumptions on considered functions and examined summability methods are obtained.
W. Łenski, B. Szal
doaj +1 more source
Embeddings of a Multi-Weighted Anisotropic Sobolev Type Space
Parameters such as various integral and differential characteristics of functions, smoothness properties of regions and their boundaries, as well as many classes of weight functions cause complex relationships and embedding conditions for multi-weighted
G.Sh. Iskakova +2 more
doaj +1 more source
A Novel Fuzzy Parameterized Fuzzy Hypersoft Set and Riesz Summability Approach Based Decision Support System for Diagnosis of Heart Diseases. [PDF]
Rahman AU +4 more
europepmc +1 more source
On the inverse problem of vibro-acoustography. [PDF]
Kaltenbacher B.
europepmc +1 more source
Non-Stationary Non-Hermitian "Wrong-Sign" Quantum Oscillators and Their Meaningful Physical Interpretation. [PDF]
Znojil M.
europepmc +1 more source
Multivariate Kalman filtering for spatio-temporal processes. [PDF]
Ferreira G, Mateu J, Porcu E.
europepmc +1 more source

