Volume 49 (2019)

Dedicated to Professors
Ferenc Schipp on the occasion of his 80-th birthday and
Péter Simon on the occasion of his 70-th birthday

Front pages

Pages: 1–7

Continuation of the laudation to Professor Ferenc Schipp on his 80-th birthday

Ferenc Weisz

Pages: 9–10

DOI: 10.71352/ac.49.009

Continuation of list of publications of Ferenc Schipp

Pages: 11–14

DOI: 10.71352/ac.49.011

Continuation of the laudation to Professor Péter Simon on his 70-th birthday

Sándor Fridli

Pages: 15–15

DOI: 10.71352/ac.49.015

Continuation of list of publications of Péter Simon

Pages: 17–18

DOI: 10.71352/ac.49.017

On the local convergence and complex geometry of eighth order iteration function

Ioannis K. Argyros, Janak Raj Sharma and Sunil Kumar

Pages: 19–34

DOI: 10.71352/ac.49.019

On the pole stability of rational approximation

Gergő Bognár and Sándor Fridli

Pages: 35–51

DOI: 10.71352/ac.49.035

Unitary equivalence of lowest dimensional reproducing formulae of type \(\mathcal{E}_2 \subset Sp(2,\mathbb{R})\)

Robert P. Boyer, Krzysztof Novak and Margit Pap

Pages: 53–76

DOI: 10.71352/ac.49.053

Poisson limit theorems for the generalized allocation scheme

Alexey Chuprunov and István Fazekas

Pages: 77–96

DOI: 10.71352/ac.49.077

Load balancing in distributed point cloud databases

István Csabai, László Dobos, Attila Kiss and János M. Szalai–Gindl

Pages: 97–116

DOI: 10.71352/ac.49.097

Problems and results on generalized quasi-arithmetic means

Zoltán Daróczy

Pages: 117–122

DOI: 10.71352/ac.49.117

On some consequences of recently proved conjectures

Jean-Marie De Koninck, Imre Kátai and Bui Minh Phong

Pages: 123–128

DOI: 10.71352/ac.49.123

Markov chain-based cost-optimal control charts with different shift size distributions

Balázs Dobi and András Zempléni

Pages: 129–146

DOI: 10.71352/ac.49.129

Recommender systems based on matrix factorization for agricultural datasets

Gábor Farkas, Katalin Lőrincz, Péter Magyar and András Molnár

Pages: 147–159

DOI: 10.71352/ac.49.147

Wavelet tight frames in Walsh analysis

Yuri A. Farkov

Pages: 161–177

DOI: 10.71352/ac.49.161

Functional equations on an infinite hypergroup join

Żywilla Fechner and László Székelyhidi

Pages: 179–185

DOI: 10.71352/ac.49.179

On the convergence of Fejér means of some subsequences of partial sums of Walsh–Fourier series

György Gát

Pages: 187–198

DOI: 10.71352/ac.49.187

Generalized dyadic derivative and uniform convergence of its Walsh–Fourier series

Boris I. Golubov and Sergey S. Volosivets

Pages: 199–207

DOI: 10.71352/ac.49.199

Symmetric polynomial-like Boolean functions

János Gonda

Pages: 209–218

DOI: 10.71352/ac.49.209

Comparing computational speed of MATLAB and Mathematica across a set
of benchmark number crunching problems

Michael Freitas Gustavo and János Tóth

Pages: 219–227

DOI: 10.71352/ac.49.219

Approximating homoclinic orbits of autonomous systems via discrete dichotomies

Szilvia György and Sándor Kovács

Pages: 229–247

DOI: 10.71352/ac.49.229

On the uniform distribution and uniform summability of positive valued multiplicative functions

Karl-Heinz Indlekofer

Pages: 249–258

DOI: 10.71352/ac.49.249

Error estimates for multiplication based on FFT over the complex numbers

Antal Járai

Pages: 259–277

DOI: 10.71352/ac.49.259

On additive arithmetical functions with values in topological groups IV.

Imre Kátai and Bui Minh Phong

Pages: 279–284

DOI: 10.71352/ac.49.279

A note on a result of B. Bojan

Bui Minh Mai Khanh

Pages: 285–297

DOI: 10.71352/ac.49.285

Partial best approximations and magnitude of double Fourier–Vilenkin coefficients

Maria A. Kuznetsova and Sergey S. Volosivets

Pages: 299–315

DOI: 10.71352/ac.49.299

An inequality for the areas of Poncelet triangles

Lajos László

Pages: 317–323

DOI: 10.71352/ac.49.317

Introducing \( p\)-eigenvectors, exact solutions for some simple matrices

Levente Lócsi

Pages: 325–345

DOI: 10.71352/ac.49.325

Extensions of Vieira’s theorems on the zeros of self-inversive polynomials

László Losonczi

Pages: 347–358

DOI: 10.71352/ac.49.347

The numerical solution of third order boundary value problems in PDEs by the finite difference method

Pramod Kumar Pandey

Pages: 359–368

DOI: 10.71352/ac.49.359

On the memory consumption of the controlled euclidean descend

Gábor Román

Pages: 369–377

DOI: 10.71352/ac.49.369

Recovering Banach-valued coefficients of series with respect to characters of zero-dimensional groups

Valentin Skvortsov

Pages: 379–397

DOI: 10.71352/ac.49.379

An estimate of the regularity index of fat points in some cases

Phan Van Thien and Tran Thi Viet Trinh

Pages: 399–410

DOI: 10.71352/ac.49.399

Weighted Hardy spaces and the Fejér means of Walsh–Fourier series

Ferenc Weisz

Pages: 411–424

DOI: 10.71352/ac.49.411

UNSOLVED PROBLEMS

Three new conjectures related to the values of arithmetic functions at consecutive integers

Jean-Marie De Koninck, Imre Kátai and Bui Minh Phong

Pages: 425–427

DOI: 10.71352/ac.49.425

BOOK REVIEW

Convergence and Summability of Fourier Transforms and Hardy Spaces

Author: Ferenc Weisz

Reviewer: Ferenc Schipp

Pages: 429–430

DOI: 10.71352/ac.49.429

Index of Volume 49

Pages: 431–433

Back pages

Pages: 435–436

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