# zbMATH — the first resource for mathematics

## Łenski, Włodzimierz

Compute Distance To:
 Author ID: lenski.wlodzimierz Published as: Lenski, W.; Lenski, Wlodzimierz; Lenski, Włodzimierz; Łenski, W.; Łenski, Włodzimierz
 Documents Indexed: 67 Publications since 1976 Reviewing Activity: 219 Reviews
all top 5

#### Co-Authors

 28 single-authored 25 Szal, Bogdan 4 Kranz, Radoslawa 3 Roszak, Bogdan 3 Topolewska, Maria 1 Gajewski, Ryszard 1 Taberski, Roman
all top 5

#### Serials

 11 Functiones et Approximatio. Commentarii Mathematici 6 Demonstratio Mathematica 3 Mathematische Nachrichten 3 Results in Mathematics 3 Mathematical Inequalities & Applications 2 Acta Scientiarum Mathematicarum 2 Applied Mathematics and Computation 2 Annales Societatis Mathematicae Polonae. Seria I. Commentationes Mathematicae 2 Acta Mathematica Hungarica 2 Commentationes Mathematicae 1 Indian Journal of Pure & Applied Mathematics 1 Fasciculi Mathematici 1 Mathematica Slovaca 1 Rendiconti del Circolo Matemàtico di Palermo. Serie II 1 Tamkang Journal of Mathematics 1 Mathematica Bohemica 1 Indagationes Mathematicae. New Series 1 East Journal on Approximations 1 Abstract and Applied Analysis 1 Acta Mathematica Sinica. English Series 1 Acta et Commentationes Universitatis Tartuensis de Mathematica 1 JIPAM. Journal of Inequalities in Pure & Applied Mathematics 1 Applied Mathematics E-Notes 1 Journal of Function Spaces and Applications 1 Annales Mathematicae et Informaticae 1 Proceedings of the Estonian Academy of Sciences 1 Journal of Mathematics
all top 5

#### Fields

 59 Harmonic analysis on Euclidean spaces (42-XX) 21 Approximations and expansions (41-XX) 8 Sequences, series, summability (40-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Functional analysis (46-XX) 1 Operator theory (47-XX)

#### Citations contained in zbMATH

16 Publications have been cited 29 times in 19 Documents Cited by Year
Approximation of functions belonging to the class $$L^p(\omega)_\beta$$ by linear operators. Zbl 1193.42032
Łenski, Włodzimierz; Szal, Bogdan
2009
On the degrees of approximation of functions belonging to $$L^{p} (\widetilde \omega)_{\beta }$$ class by matrix means of conjugate Fourier series. Zbl 1266.42009
Kranz, R.; Łenski, W.; Szal, B.
2012
Approximation of integrable functions by general linear operators of their Fourier series. Zbl 1256.42008
Łenski, Włodzimierz; Szal, Bogdan
2012
Pointwise approximation of functions from $$L^p(w)_\beta$$ by linear operators of their Fourier series. Zbl 1232.41026
Łenski, Włodzimierz; Szal, Bogdan
2012
Approximation of functions from $$L^{p}(\widetilde{\omega })_{\beta }$$ by linear operators of conjugate Fourier series. Zbl 1231.42006
Łenski, Włodzimierz; Szal, Bogdan
2011
On the approximation of functions by matrix means in the generalized Hölder metric. Zbl 1143.42003
Łenski, Włodzimierz; Szal, Bogdan
2008
On approximation of functions by some Hump matrix means of Fourier series. Zbl 1399.42013
Lenski, Włodzimierz; Szal, Bogdan
2016
Approximation of conjugate functions by general linear operators of their Fourier series at the Lebesgue points. Zbl 1306.42008
Łenski, Włodzimierz; Szal, Bogdan
2014
Approximation of integrable functions by general linear operators of their Fourier series at the Lebesgue points. Zbl 1274.42009
Łenski, W.; Szal, B.
2011
Approximation of functions from $$L^{p}(\omega) _{\beta }$$ by general linear operators of their Fourier series. Zbl 1241.42006
Łenski, Włodzimierz; Szal, Bogdan
2011
Pointwise analog of the Jackson approximation theorem. Zbl 1236.41027
Łenski, Włodzimierz
2011
Pointwise approximation by de la Vallée-Poussin means. Zbl 1217.42013
Łenski, Włodzimierz
2008
Pointwise strong and very strong approximation of Fourier series. Zbl 1136.41004
Łenski, W.
2007
On the rate of pointwise summability of Fourier series. Zbl 0996.42002
Łenski, Włodzimierz
2001
On the rate of pointwise strong $$(C,\alpha{})$$-summability of Fourier series. Zbl 0761.42004
Łenski, W.
1991
On the strong approximation by (C,$$\alpha$$ )-means of Fourier series. Zbl 0725.42005
Łenski, Włodzimierz
1990
On approximation of functions by some Hump matrix means of Fourier series. Zbl 1399.42013
Lenski, Włodzimierz; Szal, Bogdan
2016
Approximation of conjugate functions by general linear operators of their Fourier series at the Lebesgue points. Zbl 1306.42008
Łenski, Włodzimierz; Szal, Bogdan
2014
On the degrees of approximation of functions belonging to $$L^{p} (\widetilde \omega)_{\beta }$$ class by matrix means of conjugate Fourier series. Zbl 1266.42009
Kranz, R.; Łenski, W.; Szal, B.
2012
Approximation of integrable functions by general linear operators of their Fourier series. Zbl 1256.42008
Łenski, Włodzimierz; Szal, Bogdan
2012
Pointwise approximation of functions from $$L^p(w)_\beta$$ by linear operators of their Fourier series. Zbl 1232.41026
Łenski, Włodzimierz; Szal, Bogdan
2012
Approximation of functions from $$L^{p}(\widetilde{\omega })_{\beta }$$ by linear operators of conjugate Fourier series. Zbl 1231.42006
Łenski, Włodzimierz; Szal, Bogdan
2011
Approximation of integrable functions by general linear operators of their Fourier series at the Lebesgue points. Zbl 1274.42009
Łenski, W.; Szal, B.
2011
Approximation of functions from $$L^{p}(\omega) _{\beta }$$ by general linear operators of their Fourier series. Zbl 1241.42006
Łenski, Włodzimierz; Szal, Bogdan
2011
Pointwise analog of the Jackson approximation theorem. Zbl 1236.41027
Łenski, Włodzimierz
2011
Approximation of functions belonging to the class $$L^p(\omega)_\beta$$ by linear operators. Zbl 1193.42032
Łenski, Włodzimierz; Szal, Bogdan
2009
On the approximation of functions by matrix means in the generalized Hölder metric. Zbl 1143.42003
Łenski, Włodzimierz; Szal, Bogdan
2008
Pointwise approximation by de la Vallée-Poussin means. Zbl 1217.42013
Łenski, Włodzimierz
2008
Pointwise strong and very strong approximation of Fourier series. Zbl 1136.41004
Łenski, W.
2007
On the rate of pointwise summability of Fourier series. Zbl 0996.42002
Łenski, Włodzimierz
2001
On the rate of pointwise strong $$(C,\alpha{})$$-summability of Fourier series. Zbl 0761.42004
Łenski, W.
1991
On the strong approximation by (C,$$\alpha$$ )-means of Fourier series. Zbl 0725.42005
Łenski, Włodzimierz
1990
all top 5

#### Cited by 10 Authors

 12 Łenski, Włodzimierz 7 Szal, Bogdan 4 Singh, Uaday 2 Kranz, Radoslawa 2 Saini, Soshal 2 Srivastava, Shailesh Kumar 1 Lasuriya, Robert Andreevich 1 Nigam, Hare Krishna 1 Rzepka, Aleksandra 1 Szal, Barbara
all top 5

#### Cited in 14 Serials

 4 Demonstratio Mathematica 2 Acta Mathematica Hungarica 2 Asian-European Journal of Mathematics 1 Indian Journal of Pure & Applied Mathematics 1 Ukrainian Mathematical Journal 1 Applied Mathematics and Computation 1 Journal of Computational and Applied Mathematics 1 Results in Mathematics 1 The Journal of Analysis 1 Acta Mathematica Sinica. English Series 1 Journal of Function Spaces and Applications 1 Proceedings of the Estonian Academy of Sciences 1 Journal of Mathematics 1 Journal of Function Spaces

#### Cited in 5 Fields

 16 Harmonic analysis on Euclidean spaces (42-XX) 8 Approximations and expansions (41-XX) 3 Sequences, series, summability (40-XX) 1 Functions of a complex variable (30-XX) 1 Numerical analysis (65-XX)