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Łenski, Włodzimierz

Author ID: lenski.wlodzimierz Recent zbMATH articles by "Łenski, Włodzimierz"
Published as: Łenski, Włodzimierz; Lenski, Wlodzimierz; Łenski, W.; Lenski, Włodzimierz; Lenski, W.

Publications by Year

Citations contained in zbMATH Open

32 Publications have been cited 65 times in 44 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
14
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.
6
2012
Approximation of functions from \(L^{p}(\widetilde{\omega })_{\beta }\) by linear operators of conjugate Fourier series. Zbl 1231.42006
Łenski, Włodzimierz; Szal, Bogdan
3
2011
Pointwise approximation of functions from \(L^p(w)_\beta\) by linear operators of their Fourier series. Zbl 1232.41026
Łenski, Włodzimierz; Szal, Bogdan
3
2012
Approximation of integrable functions by general linear operators of their Fourier series. Zbl 1256.42008
Łenski, Włodzimierz; Szal, Bogdan
3
2012
Trigonometric approximation of functions in seminormed spaces. Zbl 1466.42003
Łenski, Włodzimierz; Singh, Uaday; Szal, Bogdan
3
2021
Pointwise strong and very strong approximation of Fourier series. Zbl 1136.41004
Łenski, W.
2
2007
Trigonometric approximation of functions from \(L_{2\pi}^{p(x)}\). Zbl 1436.42004
Łenski, Włodzimierz; Szal, Bogdan
2
2020
On the strong approximation by (C,\(\alpha\) )-means of Fourier series. Zbl 0725.42005
Łenski, Włodzimierz
2
1990
On the rate of pointwise summability of Fourier series. Zbl 0996.42002
Łenski, Włodzimierz
2
2001
On the approximation of functions by matrix means in the generalized Hölder metric. Zbl 1143.42003
Łenski, Włodzimierz; Szal, Bogdan
2
2008
On the rate of pointwise strong \((C,\alpha{})\)-summability of Fourier series. Zbl 0761.42004
Łenski, W.
2
1991
Applications of general monotone sequences to strong approximation by Fourier series. Zbl 1297.42008
Łenski, Włodzimierz; Szal, Bogdan
2
2014
Seminormed approximation by deferred matrix means of integrable functions in \(H_P^{(\omega)}\) space. Zbl 07544240
Krasniqi, Xhevat Z.; Łenski, Włodzimierz; Szal, Bogdan
2
2022
On the rate of strong summability of double Fourier series. Zbl 0936.42007
Łenski, Włodzimierz; Topolewska, Maria
1
1998
\(\Omega\)-bibliography of mathematical logic. In collaboration with Wolfgang Lenski. Volume III: Model theory. Edited by Heinz-Dieter Ebbinghaus. Zbl 0632.03004
1
1987
Approximation of integrable functions by general linear operators of their Fourier series at the Lebesgue points. Zbl 1274.42009
Łenski, W.; Szal, B.
1
2011
Pointwise approximation of modified conjugate functions by matrix operators of their Fourier series with the use of some parameters. Zbl 1450.42002
Szal, Bogdan; Łenski, Włodzimierz
1
2020
Pointwise convergence of Fourier-Laguerre series of integrable functions. Zbl 1397.42002
Łenski, Włodzimierz; Szal, Bogdan
1
2018
On estimates of deviation of functions from matrix operators of their Fourier series by some expressions with \(r\)-differences of the entries. Zbl 1470.42007
Łenski, Włodzimierz; Szal, Bogdan
1
2016
Pointwise \((H,\Phi)\) strong approximation by Fourier series of \(L^{1}\) integrable functions. Zbl 1401.42004
Łenski, Włodzimierz
1
2018
Pointwise approximation of \(2 \pi/r\)-periodic functions by matrix operators of their Fourier series with \(r\)-differences of the entries. Zbl 1404.42007
Łenski, Włodzimierz; Szal, Bogdan
1
2018
On the approximation by the generalized de la Vallée Poussin means of Fourier series in the spaces \(W^ rH^{\alpha}\). Zbl 0572.42002
Gajewski, Ryszard; Łenski, Włodzimierz
1
1985
Pointwise approximation by de la Vallée-Poussin means. Zbl 1217.42013
Łenski, Włodzimierz
1
2008
Approximation of conjugate functions by general linear operators of their Fourier series at the Lebesgue points. Zbl 1306.42008
Łenski, Włodzimierz; Szal, Bogdan
1
2014
Approximation of integrable functions by wavelet expansions. Zbl 1377.42040
Łenski, Włodzimierz; Szal, Bogdan
1
2017
Approximation of functions from \(L^{p}(\omega) _{\beta }\) by general linear operators of their Fourier series. Zbl 1241.42006
Łenski, Włodzimierz; Szal, Bogdan
1
2011
Pointwise analog of the Jackson approximation theorem. Zbl 1236.41027
Łenski, Włodzimierz
1
2011
Approximation of functions from \(L^p(\omega)_\beta\) by matrix means of their Fourier series. Zbl 1261.42003
Kranz, Radosława; Łenski, Włodzimierz; Szal, Bogdan
1
2012
Pointwise approximation of modified conjugate functions by matrix operators of their Fourier series. Zbl 1392.42008
Łenski, Włodzimierz; Szal, Bogdan
1
2018
On approximation of functions by some Hump matrix means of Fourier series. Zbl 1399.42013
Lenski, Włodzimierz; Szal, Bogdan
1
2016
Approximation of integrable functions by general linear matrix operators of their Fourier series. Zbl 1491.42002
Mishra, Vishnu Narayan; Łenski, Włodzimierz; Szal, Bogdan
1
2022
Seminormed approximation by deferred matrix means of integrable functions in \(H_P^{(\omega)}\) space. Zbl 07544240
Krasniqi, Xhevat Z.; Łenski, Włodzimierz; Szal, Bogdan
2
2022
Approximation of integrable functions by general linear matrix operators of their Fourier series. Zbl 1491.42002
Mishra, Vishnu Narayan; Łenski, Włodzimierz; Szal, Bogdan
1
2022
Trigonometric approximation of functions in seminormed spaces. Zbl 1466.42003
Łenski, Włodzimierz; Singh, Uaday; Szal, Bogdan
3
2021
Trigonometric approximation of functions from \(L_{2\pi}^{p(x)}\). Zbl 1436.42004
Łenski, Włodzimierz; Szal, Bogdan
2
2020
Pointwise approximation of modified conjugate functions by matrix operators of their Fourier series with the use of some parameters. Zbl 1450.42002
Szal, Bogdan; Łenski, Włodzimierz
1
2020
Pointwise convergence of Fourier-Laguerre series of integrable functions. Zbl 1397.42002
Łenski, Włodzimierz; Szal, Bogdan
1
2018
Pointwise \((H,\Phi)\) strong approximation by Fourier series of \(L^{1}\) integrable functions. Zbl 1401.42004
Łenski, Włodzimierz
1
2018
Pointwise approximation of \(2 \pi/r\)-periodic functions by matrix operators of their Fourier series with \(r\)-differences of the entries. Zbl 1404.42007
Łenski, Włodzimierz; Szal, Bogdan
1
2018
Pointwise approximation of modified conjugate functions by matrix operators of their Fourier series. Zbl 1392.42008
Łenski, Włodzimierz; Szal, Bogdan
1
2018
Approximation of integrable functions by wavelet expansions. Zbl 1377.42040
Łenski, Włodzimierz; Szal, Bogdan
1
2017
On estimates of deviation of functions from matrix operators of their Fourier series by some expressions with \(r\)-differences of the entries. Zbl 1470.42007
Łenski, Włodzimierz; Szal, Bogdan
1
2016
On approximation of functions by some Hump matrix means of Fourier series. Zbl 1399.42013
Lenski, Włodzimierz; Szal, Bogdan
1
2016
Applications of general monotone sequences to strong approximation by Fourier series. Zbl 1297.42008
Łenski, Włodzimierz; Szal, Bogdan
2
2014
Approximation of conjugate functions by general linear operators of their Fourier series at the Lebesgue points. Zbl 1306.42008
Łenski, Włodzimierz; Szal, Bogdan
1
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.
6
2012
Pointwise approximation of functions from \(L^p(w)_\beta\) by linear operators of their Fourier series. Zbl 1232.41026
Łenski, Włodzimierz; Szal, Bogdan
3
2012
Approximation of integrable functions by general linear operators of their Fourier series. Zbl 1256.42008
Łenski, Włodzimierz; Szal, Bogdan
3
2012
Approximation of functions from \(L^p(\omega)_\beta\) by matrix means of their Fourier series. Zbl 1261.42003
Kranz, Radosława; Łenski, Włodzimierz; Szal, Bogdan
1
2012
Approximation of functions from \(L^{p}(\widetilde{\omega })_{\beta }\) by linear operators of conjugate Fourier series. Zbl 1231.42006
Łenski, Włodzimierz; Szal, Bogdan
3
2011
Approximation of integrable functions by general linear operators of their Fourier series at the Lebesgue points. Zbl 1274.42009
Łenski, W.; Szal, B.
1
2011
Approximation of functions from \(L^{p}(\omega) _{\beta }\) by general linear operators of their Fourier series. Zbl 1241.42006
Łenski, Włodzimierz; Szal, Bogdan
1
2011
Pointwise analog of the Jackson approximation theorem. Zbl 1236.41027
Łenski, Włodzimierz
1
2011
Approximation of functions belonging to the class \(L^p(\omega)_\beta\) by linear operators. Zbl 1193.42032
Łenski, Włodzimierz; Szal, Bogdan
14
2009
On the approximation of functions by matrix means in the generalized Hölder metric. Zbl 1143.42003
Łenski, Włodzimierz; Szal, Bogdan
2
2008
Pointwise approximation by de la Vallée-Poussin means. Zbl 1217.42013
Łenski, Włodzimierz
1
2008
Pointwise strong and very strong approximation of Fourier series. Zbl 1136.41004
Łenski, W.
2
2007
On the rate of pointwise summability of Fourier series. Zbl 0996.42002
Łenski, Włodzimierz
2
2001
On the rate of strong summability of double Fourier series. Zbl 0936.42007
Łenski, Włodzimierz; Topolewska, Maria
1
1998
On the rate of pointwise strong \((C,\alpha{})\)-summability of Fourier series. Zbl 0761.42004
Łenski, W.
2
1991
On the strong approximation by (C,\(\alpha\) )-means of Fourier series. Zbl 0725.42005
Łenski, Włodzimierz
2
1990
\(\Omega\)-bibliography of mathematical logic. In collaboration with Wolfgang Lenski. Volume III: Model theory. Edited by Heinz-Dieter Ebbinghaus. Zbl 0632.03004
1
1987
On the approximation by the generalized de la Vallée Poussin means of Fourier series in the spaces \(W^ rH^{\alpha}\). Zbl 0572.42002
Gajewski, Ryszard; Łenski, Włodzimierz
1
1985

Citations by Year