Gal, Sorin G.; Sabadini, Irene Density of complex and quaternionic polyanalytic polynomials in polyanalytic Fock spaces. (English) Zbl 07785408 Complex Anal. Oper. Theory 18, No. 1, Paper No. 8, 21 p. (2024). MSC: 30E10 30G35 PDFBibTeX XMLCite \textit{S. G. Gal} and \textit{I. Sabadini}, Complex Anal. Oper. Theory 18, No. 1, Paper No. 8, 21 p. (2024; Zbl 07785408) Full Text: DOI OA License
Gal, Sorin G. Iterates of monotone and sublinear operators on spaces of continuous functions. (English) Zbl 1520.41004 Result. Math. 78, No. 4, Paper No. 152, 18 p. (2023). Reviewer: D. K. Ugulava (Tbilisi) MSC: 41A35 41A36 41A63 PDFBibTeX XMLCite \textit{S. G. Gal}, Result. Math. 78, No. 4, Paper No. 152, 18 p. (2023; Zbl 1520.41004) Full Text: DOI
Gal, Sorin G.; Sabadini, Irene Approximation by convolution polyanalytic operators in the complex and quaternionic compact unit balls. (English) Zbl 1515.30090 Comput. Methods Funct. Theory 23, No. 1, 101-123 (2023). MSC: 30E10 41A25 30G35 30G20 PDFBibTeX XMLCite \textit{S. G. Gal} and \textit{I. Sabadini}, Comput. Methods Funct. Theory 23, No. 1, 101--123 (2023; Zbl 1515.30090) Full Text: DOI
Gal, Sorin G.; Sabadini, Irene Density of polyanalytic polynomials in complex and quaternionic polyanalytic weighted Bergman spaces. (English) Zbl 1526.30063 Bull. Belg. Math. Soc. - Simon Stevin 29, No. 4, 533-553 (2022). MSC: 30G35 30E10 30H20 PDFBibTeX XMLCite \textit{S. G. Gal} and \textit{I. Sabadini}, Bull. Belg. Math. Soc. - Simon Stevin 29, No. 4, 533--553 (2022; Zbl 1526.30063) Full Text: DOI
Gal, Sorin G.; Iancu, Ionut T. Approximation by mixed operators of max-product-Choquet type. (English) Zbl 1496.41011 Daras, Nicholas J. (ed.) et al., Approximation and computation in science and engineering. Cham: Springer. Springer Optim. Appl. 180, 297-332 (2022). MSC: 41A36 41A25 41A35 28C99 PDFBibTeX XMLCite \textit{S. G. Gal} and \textit{I. T. Iancu}, Springer Optim. Appl. 180, 297--332 (2022; Zbl 1496.41011) Full Text: DOI
Gal, Sorin G.; Niculescu, Constantin P. Nonlinear versions of Korovkin’s abstract theorems. (English) Zbl 1497.41023 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 116, No. 2, Paper No. 68, 17 p. (2022). Reviewer: Vijay Gupta (New Delhi) MSC: 41A36 41A63 PDFBibTeX XMLCite \textit{S. G. Gal} and \textit{C. P. Niculescu}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 116, No. 2, Paper No. 68, 17 p. (2022; Zbl 1497.41023) Full Text: DOI arXiv
Coroianu, Lucian; Gal, Sorin G. Approximation by max-product operators of Kantorovich type. (English) Zbl 1496.41010 Parasidis, Ioannis. N. (ed.) et al., Mathematical analysis in interdisciplinary research. Cham: Springer. Springer Optim. Appl. 179, 135-168 (2021). MSC: 41A36 PDFBibTeX XMLCite \textit{L. Coroianu} and \textit{S. G. Gal}, Springer Optim. Appl. 179, 135--168 (2021; Zbl 1496.41010) Full Text: DOI
Coroianu, Lucian; Costarelli, Danilo; Gal, Sorin G.; Vinti, Gianluca Connections between the approximation orders of positive linear operators and their max-product counterparts. (English) Zbl 1483.41007 Numer. Funct. Anal. Optim. 42, No. 11, 1263-1286 (2021). Reviewer: Vijay Gupta (New Delhi) MSC: 41A25 41A35 PDFBibTeX XMLCite \textit{L. Coroianu} et al., Numer. Funct. Anal. Optim. 42, No. 11, 1263--1286 (2021; Zbl 1483.41007) Full Text: DOI
Gal, Sorin G. Volterra-Choquet nonlinear operators. (English) Zbl 07413522 Topol. Methods Nonlinear Anal. 57, No. 1, 89-106 (2021). Reviewer: Sergiu Aizicovici (Verona) MSC: 47H30 28A12 28A25 PDFBibTeX XMLCite \textit{S. G. Gal}, Topol. Methods Nonlinear Anal. 57, No. 1, 89--106 (2021; Zbl 07413522) Full Text: DOI arXiv
Coroianu, Lucian; Costarelli, Danilo; Gal, Sorin G.; Vinti, Gianluca Approximation by max-product sampling Kantorovich operators with generalized kernels. (English) Zbl 1464.41004 Anal. Appl., Singap. 19, No. 2, 219-244 (2021). Reviewer: Włodzimierz Łenski (Poznań) MSC: 41A25 41A05 41A30 47A58 PDFBibTeX XMLCite \textit{L. Coroianu} et al., Anal. Appl., Singap. 19, No. 2, 219--244 (2021; Zbl 1464.41004) Full Text: DOI
Coroianu, Lucian; Costarelli, Danilo; Gal, Sorin G.; Vinti, Gianluca Approximation by multivariate max-product Kantorovich-type operators and learning rates of least-squares regularized regression. (English) Zbl 1472.41011 Commun. Pure Appl. Anal. 19, No. 8, 4213-4225 (2020). Reviewer: Vijay Gupta (New Delhi) MSC: 41A35 41A25 41A63 PDFBibTeX XMLCite \textit{L. Coroianu} et al., Commun. Pure Appl. Anal. 19, No. 8, 4213--4225 (2020; Zbl 1472.41011) Full Text: DOI
Gal, Sorin G. Correction to: “Quantitative approximation by nonlinear Picard-Choquet, Gauss-Weierstrass-Choquet and Poisson-Cauchy-Choquet singular integrals”. (English) Zbl 1457.41014 Result. Math. 75, No. 1, Paper No. 31, 3 p. (2020). MSC: 41A36 28A10 28A12 28A25 41A25 PDFBibTeX XMLCite \textit{S. G. Gal}, Result. Math. 75, No. 1, Paper No. 31, 3 p. (2020; Zbl 1457.41014) Full Text: DOI
Gal, Sorin G.; Trifa, Sorin Quantitative estimates for \(L^p\)-approximation by Bernstein-Kantorovich-Choquet polynomials with respect to distorted Lebesgue measures. (English) Zbl 1463.41038 Constr. Math. Anal. 2, No. 1, 15-21 (2019). MSC: 41A35 28A12 28A25 41A25 PDFBibTeX XMLCite \textit{S. G. Gal} and \textit{S. Trifa}, Constr. Math. Anal. 2, No. 1, 15--21 (2019; Zbl 1463.41038) Full Text: DOI
Gal, Sorin G. Volterra-Choquet integral equations. (English) Zbl 1443.45002 J. Integral Equations Appl. 31, No. 4, 495-504 (2019). Reviewer: Anna Karczewska (Zielona Gora) MSC: 45D05 45G10 45L05 28A12 28A25 PDFBibTeX XMLCite \textit{S. G. Gal}, J. Integral Equations Appl. 31, No. 4, 495--504 (2019; Zbl 1443.45002) Full Text: DOI Euclid
Coroianu, Lucian; Costarelli, Danilo; Gal, Sorin G.; Vinti, Gianluca The max-product generalized sampling operators: convergence and quantitative estimates. (English) Zbl 1428.41018 Appl. Math. Comput. 355, 173-183 (2019). MSC: 41A25 41A05 41A30 47A58 94A20 PDFBibTeX XMLCite \textit{L. Coroianu} et al., Appl. Math. Comput. 355, 173--183 (2019; Zbl 1428.41018) Full Text: DOI
Gal, Sorin G. Fredholm-Choquet integral equations. (English) Zbl 1444.45002 J. Integral Equations Appl. 31, No. 2, 183-194 (2019). Reviewer: Nikolaos L. Tsitsas (Athína) MSC: 45B05 28A25 45G10 45L05 28A12 PDFBibTeX XMLCite \textit{S. G. Gal}, J. Integral Equations Appl. 31, No. 2, 183--194 (2019; Zbl 1444.45002) Full Text: DOI Euclid
Gal, Sorin G. Quantitative approximation by nonlinear Picard-Choquet, Gauss-Weierstrass-Choquet and Poisson-Cauchy-Choquet singular integrals. (English) Zbl 1400.41016 Result. Math. 73, No. 3, Paper No. 92, 23 p. (2018); correction ibid. 75, No. 1, Paper No. 31, 3 p. (2020). MSC: 41A36 28A10 28A12 28A25 41A25 PDFBibTeX XMLCite \textit{S. G. Gal}, Result. Math. 73, No. 3, Paper No. 92, 23 p. (2018; Zbl 1400.41016) Full Text: DOI
Gal, Sorin G. Uniform and pointwise quantitative approximation by Kantorovich-Choquet type integral operators with respect to monotone and submodular set functions. (English) Zbl 1376.41018 Mediterr. J. Math. 14, No. 5, Paper No. 205, 12 p. (2017). MSC: 41A35 41A25 28A12 28A25 PDFBibTeX XMLCite \textit{S. G. Gal}, Mediterr. J. Math. 14, No. 5, Paper No. 205, 12 p. (2017; Zbl 1376.41018) Full Text: DOI
Gal, Sorin G. Approximation by Bernstein-Faber-Walsh and Szász-Mirakjan-Faber-Walsh operators in multiply connected compact sets of \(\mathbb{C}\). (English) Zbl 1375.30042 Govil, Narenda Kumar (ed.) et al., Progress in approximation theory and applicable complex analysis. In memory of Q.I. Rahman. Cham: Springer (ISBN 978-3-319-49240-7/hbk; 978-3-319-49242-1/ebook). Springer Optimization and Its Applications 117, 401-428 (2017). MSC: 30E10 PDFBibTeX XMLCite \textit{S. G. Gal}, Springer Optim. Appl. 117, 401--428 (2017; Zbl 1375.30042) Full Text: DOI
Coroianu, Lucian; Gal, Sorin G.; Opris, Bogdan D.; Trifa, Sorin Feller’s scheme in approximation by nonlinear possibilistic integral operators. (English) Zbl 1364.41013 Numer. Funct. Anal. Optim. 38, No. 3, 327-343 (2017). MSC: 41A36 41A25 28E10 PDFBibTeX XMLCite \textit{L. Coroianu} et al., Numer. Funct. Anal. Optim. 38, No. 3, 327--343 (2017; Zbl 1364.41013) Full Text: DOI
Gal, Sorin G. Approximation under exponential growth conditions by Szász and Baskakov type operators in the complex plane. (English) Zbl 1370.41032 Rassias, Themistocles M. (ed.) et al., Mathematical analysis, approximation theory and their applications. Cham: Springer (ISBN 978-3-319-31279-8/hbk; 978-3-319-31281-1/ebook). Springer Optimization and Its Applications 111, 235-266 (2016). MSC: 41A35 30E10 41A25 PDFBibTeX XMLCite \textit{S. G. Gal}, Springer Optim. Appl. 111, 235--266 (2016; Zbl 1370.41032) Full Text: DOI
Gal, Sorin G. Approximation by Choquet integral operators. (English) Zbl 1342.41027 Ann. Mat. Pura Appl. (4) 195, No. 3, 881-896 (2016). Reviewer: Zoltán Finta (Cluj-Napoca) MSC: 41A36 41A25 28A10 28A12 28A25 60E15 PDFBibTeX XMLCite \textit{S. G. Gal}, Ann. Mat. Pura Appl. (4) 195, No. 3, 881--896 (2016; Zbl 1342.41027) Full Text: DOI arXiv
Coroianu, Lucian; Gal, Sorin G. Localization results for the non-truncated max-product sampling operators based on Fejér and sinc-type kernels. (English) Zbl 1347.41027 Demonstr. Math. 49, No. 1, 38-49 (2016). Reviewer: Vijay Gupta (New Delhi) MSC: 41A36 PDFBibTeX XMLCite \textit{L. Coroianu} and \textit{S. G. Gal}, Demonstr. Math. 49, No. 1, 38--49 (2016; Zbl 1347.41027) Full Text: DOI
Gal, Sorin G.; Opris, Bogdan D. Approximation of analytic functions with an arbitrary order by generalized Baskakov-Faber operators in compact sets. (English) Zbl 1332.30057 Complex Anal. Oper. Theory 10, No. 2, 369-377 (2016). MSC: 30E10 41A25 PDFBibTeX XMLCite \textit{S. G. Gal} and \textit{B. D. Opris}, Complex Anal. Oper. Theory 10, No. 2, 369--377 (2016; Zbl 1332.30057) Full Text: DOI
Gal, Sorin G.; Sabadini, Irene Walsh equiconvergence theorems in the quaternionic setting. (English) Zbl 1301.30047 Complex Var. Elliptic Equ. 59, No. 12, 1589-1607 (2014). MSC: 30G35 PDFBibTeX XMLCite \textit{S. G. Gal} and \textit{I. Sabadini}, Complex Var. Elliptic Equ. 59, No. 12, 1589--1607 (2014; Zbl 1301.30047) Full Text: DOI Link
Gal, Sorin G. Erratum to: “Differentiated generalized Voronovskaja’s theorem in compact disks”. (English) Zbl 1258.30016 Result. Math. 63, No. 1-2, 713-716 (2013). MSC: 30E10 41A25 41A28 PDFBibTeX XMLCite \textit{S. G. Gal}, Result. Math. 63, No. 1--2, 713--716 (2013; Zbl 1258.30016) Full Text: DOI
Gal, Sorin G. Differentiated generalized Voronovskaja’s theorem in compact disks. (English) Zbl 1257.30031 Result. Math. 61, No. 3-4, 347-353 (2012); erratum ibid. 63, No. 1-2, 713-716 (2013). MSC: 30E10 41A25 41A28 PDFBibTeX XMLCite \textit{S. G. Gal}, Result. Math. 61, No. 3--4, 347--353 (2012; Zbl 1257.30031) Full Text: DOI
Gal, Sorin G.; Gupta, Vijay Quantitative estimates for a new complex Durrmeyer operator in compact disks. (English) Zbl 1250.30031 Appl. Math. Comput. 218, No. 6, 2944-2951 (2011). Reviewer: George A. Anastassiou (Memphis) MSC: 30E10 41A35 PDFBibTeX XMLCite \textit{S. G. Gal} and \textit{V. Gupta}, Appl. Math. Comput. 218, No. 6, 2944--2951 (2011; Zbl 1250.30031) Full Text: DOI
Anastassiou, George A.; Gal, S. G. Approximation by complex Bernstein-Durrmeyer polynomials in compact disks. (English) Zbl 1207.30055 Mediterr. J. Math. 7, No. 4, 471-482 (2010). MSC: 30E10 41A25 PDFBibTeX XMLCite \textit{G. A. Anastassiou} and \textit{S. G. Gal}, Mediterr. J. Math. 7, No. 4, 471--482 (2010; Zbl 1207.30055) Full Text: DOI
Gal, Sorin G. Approximation by complex genuine durrmeyer type polynomials in compact disks. (English) Zbl 1201.30041 Appl. Math. Comput. 217, No. 5, 1913-1920 (2010). MSC: 30E10 41A25 PDFBibTeX XMLCite \textit{S. G. Gal}, Appl. Math. Comput. 217, No. 5, 1913--1920 (2010; Zbl 1201.30041) Full Text: DOI
Anastassiou, George A.; Gal, Sorin G. Approximation by complex Bernstein-Schurer and Kantorovich-Schurer polynomials in compact disks. (English) Zbl 1189.41002 Comput. Math. Appl. 58, No. 4, 734-743 (2009). MSC: 41A10 PDFBibTeX XMLCite \textit{G. A. Anastassiou} and \textit{S. G. Gal}, Comput. Math. Appl. 58, No. 4, 734--743 (2009; Zbl 1189.41002) Full Text: DOI
Bede, Barnabás; Coroianu, Lucian; Gal, Sorin G. Approximation and shape preserving properties of the Bernstein operator of max-product kind. (English) Zbl 1188.41016 Int. J. Math. Math. Sci. 2009, Article ID 590589, 26 p. (2009). MSC: 41A36 PDFBibTeX XMLCite \textit{B. Bede} et al., Int. J. Math. Math. Sci. 2009, Article ID 590589, 26 p. (2009; Zbl 1188.41016) Full Text: DOI EuDML
Gal, Sorin G. Approximation and geometric properties of some nonlinear complex integral convolution operators. (English) Zbl 1148.41021 Integral Transforms Spec. Funct. 19, No. 5, 367-375 (2008). MSC: 41A35 41A25 30E10 30C45 PDFBibTeX XMLCite \textit{S. G. Gal}, Integral Transforms Spec. Funct. 19, No. 5, 367--375 (2008; Zbl 1148.41021) Full Text: DOI
Gal, Sorin G. Convolution-type integral operators in complex approximation. (English) Zbl 1011.30031 Comput. Methods Funct. Theory 1, No. 2, 417-432 (2001). Reviewer: Eleonora Storozhenko (Odessa) MSC: 30E10 30C45 41A10 41A25 41A99 PDFBibTeX XMLCite \textit{S. G. Gal}, Comput. Methods Funct. Theory 1, No. 2, 417--432 (2001; Zbl 1011.30031) Full Text: DOI