
Harmonic Analysis and Related Fields Conference, Visegrád,
Hungary, 1113 June, 2019.
 Blahota, I.,
Θmeans
in different spaces,
 Nagy, K.,
Properties of the maximal
operator of WalshKaczmarzMarcinkiewicz means,
 Toledo, R.,
Multistep method for
solving differential equations numerically by Walsh functions,
Second
Spring Seminar on Analysis Workshop, Debrecen, Hungary, 4
April, 2019.
 Nagy,
K., End
point theorems for Fejér means with respect to Walsh–Kaczmarz
system.
17^{th} International
Conference on Operational Research, KOI 2018, Croatia,
Zadar, September 2628, 2018.
 Bajalinov, E.,
On the Optimized Polynomial Smoothing
Approach to the Seasonal Time
Series Analysis.
Numbers,
Functions, Equations 2018,
Hajdúszoboszló, Hungary, August 26  September 1, 2018.
 Blahota, I.,
Approximation by Thetameans,
 Nagy, K.,
Conelike restricted summability of the twodimensional
Walsh and WalshKaczmarz means,
 Toledo, R.,
Numerical solution of linear differential equations by
Walsh polynomials approach,
6th
workshop
on Fourier analysis and related fields, Pécs,
Hungary, 2430 August 2017.
 Nagy,
K., Some
properties of Marcinkiewicz means with respect to Walsh
system
 Blahota, I., Approximation
by θmeans of WalshFourier series
 Toledo, R.,
The boundedness of the L^1norm of WalshFejér kernels
GeorgianHungarian
joint workshop on Dyadic Analysis and Related Fields, 2015,
Nyíregyháza, Hungary, May 30  June 05, 2015.
 Blahota, I., Tephnadze,
G., Nagy, K., Fejer
and Marcinkiewicz means of VilenkinFourier series
 Gát, G., The
weighted Walsh system and other stuff
 Toledo, R., Application of Walsh functions to
solve differential equations
Conference of the International Federation of
Operational Research Societies,
Barcelona, Spain July 1314. 2014
 Bajalinov, E., Duleba,
Sz.: On a time series forecasting method based on Walsh transform.
Conference on Dyadic Analysis and Related Fields
with
Applications (DARFA14), Nyíregyháza, Hungary,
June 16, 2014 dedicated to the
75 birthday of Professor Ferenc Schipp,
to the 70 th birthday of Professor
William Wade and to the 65 th birthday of Professor Péter
Simon.
International Conference on
Fourier Analysis and Approximation Theory dedicated to the 80th
birthday of Academician Levan Zhizhiashvili, Bazaleti
(Georgia) October 2328, 2013.
 Gát, Gy., Summation
of WalshFourier series, convergence and divergence.
 Nagy, K., Marcinkiewicz summability of
twodimensional Fourier series of Walshlike systems.
 Toledo, R., Approximation
of series on the complete product of finite nonabelian groups
Conference on Dyadic Analysis and
Applications, Nyíregyháza, Hungary, Oktober 0102,
2013.
 Gát, Gy., Fejér
(and other) means of Walsh and VilenkinFourier series.
 Nagy, K., On the Marcinkiewicz means of
WalshKaczmarzFourier series.
 Toledo, R., Computer algebra packages to study
locally constant systems.
4th Workshop on Fourier Analysis and Related
Fields, 2630 August, 2013,
Budapest
 Gát, Gy., Summation
of one and twodimensional WalshFourier series.
IV. Jaen Conference on Approximation Theory,
Úbeda, Jaén, Spain, june 2327, 2013.
 Toledo, R., Representative
product systems on the complete product of
quaternion groups (poster).
International Conference Constructive
Theory of Functions – 2013 Sozopol, June 9–15,
2013.
 Blahota, I., Maximal
propertiies of kernels for Vilenkinlike systems.
 Gát, Gy., Subsequences
of partial sums of one and twodimensional WalshFourier
series.
 Nagy, K., Restricted summability of the
twodimensional Walsh and WalshKaczmarzFejér means.
 Toledo, R., Convergence
in L^pnorm of Fourier series on the complete product of
quaternion groups with bounded orders.
Conference on Inequalities and Applications' 10, In Hotel, Hajdúszoboszló, Hungary,
September 1925, 2010.
 Nagy, K., On
the WalshMarcinkiewicz means and kernels.
I Jaen conference on Approximation, Úbeda,
july 49, 2010.
 Toledo, R., Recent
developments on approximation theory with respect to
representative product systems.
6th International Conference on Functional
Analysis and Approximation Theory,
FAAT 2009, Acquafredda di Maratea, September 24  30, 2009.
 Blahota, I., On
boundedness of maximal operators with respect to Vilenkin
systems.
 Gát, Gy., Approximation
properties of one and two dimensional Fejér and
Marczinkiewicz means of Fourier series with respect to
Walsh and Vilenkin systems.
 Nagy, K., Approximation
by Nörlund means
of WalshKaczmarzFourier series.
 Toledo, R.,
Representative product systems.
3rd Workshop in Fourier Analysis and Related
Fields, Budapest, Hungary,
September 1723, 2009.
 Blahota, I., Maximal operators on Vilenkin
systems.
 Gát, Gy., One
and two dimensional Fejér means on the Walsh and Vilenkin
groups.
 Nagy, K., Approximation
by Nörlund means
of WalshFourier series.
 Toledo, R.,
The maximal value of Dirichlet kernels with respect to
representative product systems.
Workshop
on Dyadic Analysis and Related Areas with Applications,
Dobogókő, Hungary, June 7–10, 2009.
 Blahota, I., On
maximal operators with respect to Walsh and Vilenkin systems.
 Gát, Gy., Some
convergence
and divergence results with respect to summation of Fourier
series on one and twodimensional unbounded Vilenkin groups.
 Nagy, K., Uniform
and Lconvergence of the Nörlund logarithmic means of
WalshKaczmarzFourier series.
 Toledo, R.,
Convergence in $L^p$norm of Cesaro means on the complete
product of finite noncommutative groups.
Discrete
Analysis
and Applications, Thessaloniki,
Greece, September 2729, 2008.
International
Workshop on Orthogonal Polynomials
and Approximation Theory 2008, Madrid, Spain, September 812,
2008.
Mathematical
Inequalities and Applications 2008, TrogirSplit, Croatia,
June 814, 2008.
Second
Workshop on Extremal Problems in Fourier analysis,
Budapest, Hungary, September 1824, 2007.
 Blahota, I., Maximal
operators of Fejér and Marcinkiewicz means on Vilenkin
systems.
 Gát, G., Convergence
of Cesaro means of Fourier series.
 Nagy, K., On the
$L^1$norm of the weigted maximal function of Fejér
kernels with respect to the WalshKaczmarz system.
 Toledo, R., On the
convergence in $L^p$norm of Cesaro means with respect to
representative product systems.
Summer school: New trends and directions in
harmonic analysis, approximation theory, Inzell,
Germany, September 17 – 21, 2007.
International
Conference in Fourier and Complex Analysis: Classical Problems
Current View, Protaras, Cyprus, 0610. May, 2006.
 Blahota, I., On the
maximal operator of Fejér and Marcinkiewicz means with respect
to the Vilenkin system.
 Gát, G., Some
convergence properties of Fourier series with respect to the
weighted Walsh system.
 Nagy, K., The
boundedness of the twodimensional MarcinkiewiczFejér means
with respect to the WalshKaczmarz system.
 Toledo, R., Convergence
of WalshFourier series of functions with bounded
osscillacion.
Fourier
Analysis Extremal Problems and Approximation, Budapest, Hungary, September 1925, 2005.
 Blahota, I., Some approximation properties of
Nörlund logarithmic means on Vilenkin groups,
 Gát, G. Maximal convergence spaces of some
operators related to the Fourier series of twovariable
functions on the Walsh group,
 Nagy, K., Convergence properties of the
Marcinkiewicz means of integrable functions with respect to
the WalshKaczmarz system,
 Toledo, R., Negative results concerning Fourier
series on the complete product of S3.
Constructive
Theory Of Functions, Varna, Bulgary, June 17, 2005.
 Blahota, I., Norm convergence of logarithmic
means of Fourier series on unbounded Vilenkin groups,
 Gát, G., On convergence properties of logarithmic
means of WalshFourier series,
 Nagy, K., Almost everywhere convergence of the
twodimensional Marcinkiewicz means with respect to the
WalshKaczmarz system,
 Toledo, R., Fourier analysis on the complete
product of finite groups.
5th
International Conference on Functional and Approximation
Theory, Maratea, Italy, June 1623, 2004.
 Blahota, I., On
Vilenkinlike systems,
 Gát, G.,
On a.e. summability of
Fourier series on Vilenkin groups,
 Nagy, K., Some convergence properties of the
WalshKaczmarz system,
 Toledo, R., Convergence in norm on the complete
product of finite groups.
Dyadic Analysis with Applications and Generalizations,
Balatonszemes, Hungary, June 1215, 2003.
 Nagy, K., Norm convergence of Fejér means on
$\mathbf {R}^+$ with respect to WalshKaczmarz system,
 Toledo, R., On the Dirichlet kernels with respect
to representative product system
Alexits Memorial Conference, Budapest, Hungary, August 914,
1999.
 Blahota, I., Investigation with respect to the
twodimensional Vilenkin space,
 Nagy, K., The (H,L)boundedness of the Sunouchi
operator with respect to WalshKaczmarz system,
 Toledo, R., On the convergence of Fourier series
on CTD groups.
Gyula Strommer national memorial conference, Balatonfüred,
Hungary, May 15, 1999.
 Toledo. R., Recent developments on approximation
theory on CTD groups.
Numbers, Functions, Equations '98, Noszvaj, Hungary, May
31June 6, 1998.
 Blahota, I., On a norm inequality with respect to
Vilenkinlike systems,
 Gát, G., Nagy, K., Investigation of the Sunouchi
operator with respect to the WalshKaczmarz system.
International Conference on Approximation and Optimization,
ClujNapoca, Romania, July 29August 1, 1996.
 Nagy, K., On the (H,L) typeness of the maximal
operator of the derivate on twodimensional Vilenkin groups.
Development and application of mathematical methods in
scientifictechnical investigations. Lviv, Ukraina,
Oktober 1995.
 Toledo, R., On Hardynorm of operators
with property D.
PAMM Conference, Göd, Oktober 2124, 1992.
 Blahota, I., On the theorem of Fridli
and Simon with respect to some Vilenkinlike systems.
PAMM Conference, Balatonfüred, May 1991.
 Toledo, R., Estimates of the Fourier
coefficient with respect to $\Psi\alpha$ systems on
Vilenkin groups.
