Sain, Debmalya; Sohel, Shamim; Ghosh, Souvik; Paul, Kallol On the best coapproximation problem in \(\ell_1^n\). (English) Zbl 07790398 Linear Multilinear Algebra 72, No. 1, 31-49 (2024). MSC: 46B20 41A65 PDFBibTeX XMLCite \textit{D. Sain} et al., Linear Multilinear Algebra 72, No. 1, 31--49 (2024; Zbl 07790398) Full Text: DOI
Loku, Valdete; Braha, Naim L.; Mursaleen, M. Some properties of the generalized Stancu operators. (English) Zbl 07822467 J. Anal. 31, No. 4, 2501-2512 (2023). MSC: 41A36 PDFBibTeX XMLCite \textit{V. Loku} et al., J. Anal. 31, No. 4, 2501--2512 (2023; Zbl 07822467) Full Text: DOI
Yılmaz, Mine Menekşe Rate of convergence by Kantorovich type operators involving adjoint Bernoulli polynomials. (English) Zbl 07800612 Publ. Inst. Math., Nouv. Sér. 114, No. 128, 51-62 (2023). MSC: 41A10 41A25 41A36 PDFBibTeX XMLCite \textit{M. M. Yılmaz}, Publ. Inst. Math., Nouv. Sér. 114, No. 128, 51--62 (2023; Zbl 07800612) Full Text: DOI
Kaur, Jaspreet; Goyal, Meenu A note on \(\alpha\)-Baskakov-Durrmeyer-type operators. (English) Zbl 07784557 Rocky Mt. J. Math. 53, No. 5, 1511-1524 (2023). MSC: 26A15 41A25 41A35 41A36 PDFBibTeX XMLCite \textit{J. Kaur} and \textit{M. Goyal}, Rocky Mt. J. Math. 53, No. 5, 1511--1524 (2023; Zbl 07784557) Full Text: DOI arXiv Link
Birou, Marius-Mihai A note on the remainder in the approximation of functions by some positive linear operators. (41A55.) (English) Zbl 1527.41005 Positivity 27, No. 5, Paper No. 61, 15 p. (2023). MSC: 41A36 41A25 41A55 41A80 PDFBibTeX XMLCite \textit{M.-M. Birou}, Positivity 27, No. 5, Paper No. 61, 15 p. (2023; Zbl 1527.41005) Full Text: DOI OA License
Kaur, Jaspreet; Goyal, Meenu Approximation properties of Durrmeyer-variant of Lupaş type operators. (English) Zbl 07757160 Ann. Univ. Ferrara, Sez. VII, Sci. Mat. 69, No. 2, 329-347 (2023). MSC: 26A15 40A05 41A10 41A25 41A35 41A60 PDFBibTeX XMLCite \textit{J. Kaur} and \textit{M. Goyal}, Ann. Univ. Ferrara, Sez. VII, Sci. Mat. 69, No. 2, 329--347 (2023; Zbl 07757160) Full Text: DOI
Kaur, Jaspreet; Goyal, Meenu On \(\alpha \)-Bézier curves and surfaces. (English) Zbl 07730762 Boll. Unione Mat. Ital. 16, No. 3, 459-470 (2023). MSC: 41A10 65D17 PDFBibTeX XMLCite \textit{J. Kaur} and \textit{M. Goyal}, Boll. Unione Mat. Ital. 16, No. 3, 459--470 (2023; Zbl 07730762) Full Text: DOI
Karsli, Harun; Agrawal, Purshottam Narain Rate of convergence of Stancu type modified \(q\)-Gamma operators for functions with derivatives of bounded variation. (English) Zbl 07723693 Math. Found. Comput. 6, No. 4, 601-615 (2023). MSC: 41A25 41A35 PDFBibTeX XMLCite \textit{H. Karsli} and \textit{P. N. Agrawal}, Math. Found. Comput. 6, No. 4, 601--615 (2023; Zbl 07723693) Full Text: DOI
Tran Loc Hung On the randomized Bernstein approximation theorem and the order of approximation. (English) Zbl 1524.41017 Lobachevskii J. Math. 44, No. 2, 821-837 (2023). MSC: 41A10 60F05 PDFBibTeX XMLCite \textit{Tran Loc Hung}, Lobachevskii J. Math. 44, No. 2, 821--837 (2023; Zbl 1524.41017) Full Text: DOI
Lipi, Km.; Deo, Naokant \(\lambda\)-Bernstein operators based on Pólya distribution. (English) Zbl 1528.41037 Numer. Funct. Anal. Optim. 44, No. 6, 529-544 (2023). MSC: 41A25 41A36 PDFBibTeX XMLCite \textit{Km. Lipi} and \textit{N. Deo}, Numer. Funct. Anal. Optim. 44, No. 6, 529--544 (2023; Zbl 1528.41037) Full Text: DOI
Sain, Debmalya; Sohel, Shamim; Ghosh, Souvik; Paul, Kallol On best coapproximations in subspaces of diagonal matrices. (English) Zbl 1523.46010 Linear Multilinear Algebra 71, No. 1, 47-62 (2023). MSC: 46B20 41A65 47L05 PDFBibTeX XMLCite \textit{D. Sain} et al., Linear Multilinear Algebra 71, No. 1, 47--62 (2023; Zbl 1523.46010) Full Text: DOI
Gupta, Vijay; Anjali On Kantorovich variant based on inverse Pólya-Eggenberger distribution. (English) Zbl 1507.65219 Bull. Malays. Math. Sci. Soc. (2) 46, No. 1, Paper No. 2, 18 p. (2023). MSC: 65N06 41A25 41A30 PDFBibTeX XMLCite \textit{V. Gupta} and \textit{Anjali}, Bull. Malays. Math. Sci. Soc. (2) 46, No. 1, Paper No. 2, 18 p. (2023; Zbl 1507.65219) Full Text: DOI
Buranay, S. C.; Özarslan, M. A.; Falahhesar, S. S. Hybrid operators for approximating nonsmooth functions and applications on Volterra integral equations with weakly singular kernels. (English) Zbl 1528.45006 Numer. Funct. Anal. Optim. 44, No. 1, 36-63 (2023). MSC: 45L05 45D05 45A05 41A36 41A25 PDFBibTeX XMLCite \textit{S. C. Buranay} et al., Numer. Funct. Anal. Optim. 44, No. 1, 36--63 (2023; Zbl 1528.45006) Full Text: DOI
Gairola, Asha Ram; Singh, Amrita; Rathour, Laxmi; Mishra, Vishnu Narayan Improved rate of approximation by modification of Baskakov operator. (English) Zbl 1524.41060 Oper. Matrices 16, No. 4, 1097-1123 (2022). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{A. R. Gairola} et al., Oper. Matrices 16, No. 4, 1097--1123 (2022; Zbl 1524.41060) Full Text: DOI
Qasim, Mohd; Mursaleen, M.; Khan, Asif; Abbas, Zaheer On some statistical approximation properties of generalized Lupaş-Stancu operators. (English) Zbl 1524.41067 Kragujevac J. Math. 46, No. 5, 797-813 (2022). MSC: 41A36 41A10 41A25 PDFBibTeX XMLCite \textit{M. Qasim} et al., Kragujevac J. Math. 46, No. 5, 797--813 (2022; Zbl 1524.41067) Full Text: DOI Link
Mnatsakanov, Robert M.; Albrecher, Hansjoerg; Loisel, Stephane Approximations of copulas via transformed moments. (English) Zbl 1505.62480 Methodol. Comput. Appl. Probab. 24, No. 4, 3175-3193 (2022). MSC: 62H05 62G05 62G07 41A25 PDFBibTeX XMLCite \textit{R. M. Mnatsakanov} et al., Methodol. Comput. Appl. Probab. 24, No. 4, 3175--3193 (2022; Zbl 1505.62480) Full Text: DOI
Agrawal, Gunjan; Gupta, Vijay Modified Lupaş-Kantorovich operators with Pólya distribution. (English) Zbl 1528.41034 Rocky Mt. J. Math. 52, No. 6, 1909-1919 (2022). MSC: 41A25 PDFBibTeX XMLCite \textit{G. Agrawal} and \textit{V. Gupta}, Rocky Mt. J. Math. 52, No. 6, 1909--1919 (2022; Zbl 1528.41034) Full Text: DOI Link
Bawa, Parveen; Bhardwaj, Neha; Agrawal, P. N. Quantitative Voronovskaya type theorems and GBS operators of Kantorovich variant of Lupaş-Stancu operators based on Pólya distribution. (English) Zbl 1514.41007 Math. Found. Comput. 5, No. 4, 269-293 (2022). MSC: 41A25 41A35 PDFBibTeX XMLCite \textit{P. Bawa} et al., Math. Found. Comput. 5, No. 4, 269--293 (2022; Zbl 1514.41007) Full Text: DOI
Qasim, Mohd; Mansoori, Mohd Shanawaz; Khan, Asif; Abbas, Zaheer; Mursaleen, Mohammad Convergence of modified Szász-Mirakyan-Durrmeyer operators depending on certain parameters. (English) Zbl 1514.41002 Math. Found. Comput. 5, No. 3, 187-196 (2022). MSC: 41A10 41A25 41A36 PDFBibTeX XMLCite \textit{M. Qasim} et al., Math. Found. Comput. 5, No. 3, 187--196 (2022; Zbl 1514.41002) Full Text: DOI
Agrawal, P. N.; Kajla, Arun; Kumar, Abhishek \(q\)-analogue of a Kantorovitch variant of an operator defined by Stancu. (English) Zbl 1521.41008 Acta Math. Vietnam. 47, No. 4, 781-816 (2022). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{P. N. Agrawal} et al., Acta Math. Vietnam. 47, No. 4, 781--816 (2022; Zbl 1521.41008) Full Text: DOI
Çekim, Bayram; Aktaş, Rabia; Taşdelen, Fatma A Dunkl-Gamma type operator in terms of generalization of two-variable Hermite polynomials. (English) Zbl 1524.41031 Indian J. Pure Appl. Math. 53, No. 3, 727-735 (2022). MSC: 41A25 33C45 41A36 PDFBibTeX XMLCite \textit{B. Çekim} et al., Indian J. Pure Appl. Math. 53, No. 3, 727--735 (2022; Zbl 1524.41031) Full Text: DOI arXiv
Ansari, Khursheed J.; Özger, Faruk; Ödemiş Özger, Zeynep Numerical and theoretical approximation results for Schurer-Stancu operators with shape parameter \(\lambda\). (English) Zbl 1513.41022 Comput. Appl. Math. 41, No. 4, Paper No. 181, 18 p. (2022). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{K. J. Ansari} et al., Comput. Appl. Math. 41, No. 4, Paper No. 181, 18 p. (2022; Zbl 1513.41022) Full Text: DOI
Tunç, Tuncay; Fedakar, Burcu On approximation properties of a Stancu generalization of Szasz-Mirakyan-Bernstein operators. (English) Zbl 1508.41007 J. Math. Sci., New York 260, No. 5, 700-710 (2022); and Ukr. Mat. Visn. 18, No. 4, 569-582 (2021). Reviewer: Vijay Gupta (New Delhi) MSC: 41A25 41A30 PDFBibTeX XMLCite \textit{T. Tunç} and \textit{B. Fedakar}, J. Math. Sci., New York 260, No. 5, 700--710 (2022; Zbl 1508.41007) Full Text: DOI
Choi, Geunsu; Choi, Yun Sung; Jung, Mingu; Martín, Miguel On quasi norm attaining operators between Banach spaces. (English) Zbl 1500.46010 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 116, No. 3, Paper No. 133, 32 p. (2022). Reviewer: Sheldon Dantas (Castelló) MSC: 46B04 46B20 46B22 47B07 46G25 41A65 26A16 PDFBibTeX XMLCite \textit{G. Choi} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 116, No. 3, Paper No. 133, 32 p. (2022; Zbl 1500.46010) Full Text: DOI arXiv
Yilmaz, Övgü Gürel; Aktaş, Rabia; Yeşildal, Fatma Taşdelen; Olgun, Ali On approximation properties of generalized Lupaş type operators based on Polya distribution with Pochhammer \(k\)-symbol. (English) Zbl 1513.41038 Hacet. J. Math. Stat. 51, No. 2, 338-361 (2022). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{Ö. G. Yilmaz} et al., Hacet. J. Math. Stat. 51, No. 2, 338--361 (2022; Zbl 1513.41038) Full Text: DOI arXiv
Olteanu, Octav On Hahn-Banach theorem and some of its applications. (English) Zbl 1497.46004 Open Math. 20, 366-390 (2022). MSC: 46A22 47H07 41A10 46A55 PDFBibTeX XMLCite \textit{O. Olteanu}, Open Math. 20, 366--390 (2022; Zbl 1497.46004) Full Text: DOI
Mishra, Vishnu Narayan; Yadav, Rishikesh Approximation on a new class of Szász-Mirakjan operators and their extensions in Kantorovich and Durrmeyer variants with applicable properties. (English) Zbl 1491.41010 Georgian Math. J. 29, No. 2, 245-273 (2022). Reviewer: Neha Malik (New Delhi) MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{V. N. Mishra} and \textit{R. Yadav}, Georgian Math. J. 29, No. 2, 245--273 (2022; Zbl 1491.41010) Full Text: DOI
Dăianu, Dan M. Samples of homogeneous functions. (English) Zbl 1496.41002 Result. Math. 77, No. 2, Paper No. 78, 14 p. (2022). MSC: 41A10 22A10 41A58 41A80 PDFBibTeX XMLCite \textit{D. M. Dăianu}, Result. Math. 77, No. 2, Paper No. 78, 14 p. (2022; Zbl 1496.41002) 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
Bodur, Murat; Manav, Nesibe; Tasdelen, Fatma Approximation properties of \(\lambda\)-Bernstein-Kantorovich-Stancu operators. (English) Zbl 1485.41011 Math. Slovaca 72, No. 1, 141-152 (2022). Reviewer: Dan Bărbosu (Baia Mare) MSC: 41A36 41A10 41A25 PDFBibTeX XMLCite \textit{M. Bodur} et al., Math. Slovaca 72, No. 1, 141--152 (2022; Zbl 1485.41011) Full Text: DOI
Cai, Qing-Bo; Kilicman, Adem; Mursaleen, Mohammad Ayman Approximation properties and \(q\)-statistical convergence of Stancu-type generalized Baskakov-Szász operators. (English) Zbl 1493.40012 J. Funct. Spaces 2022, Article ID 2286500, 9 p. (2022). MSC: 40A35 41A36 PDFBibTeX XMLCite \textit{Q.-B. Cai} et al., J. Funct. Spaces 2022, Article ID 2286500, 9 p. (2022; Zbl 1493.40012) Full Text: DOI
Gupta, Vijay; Anjali Higher order Kantorovich operators based on inverse Pólya-Eggenberger distribution. (English) Zbl 1477.65172 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 116, No. 1, Paper No. 31, 15 p. (2022). MSC: 65N06 62E17 41A30 41A36 41A25 PDFBibTeX XMLCite \textit{V. Gupta} and \textit{Anjali}, Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 116, No. 1, Paper No. 31, 15 p. (2022; Zbl 1477.65172) Full Text: DOI
Kumar, Alok; Khurana, Dakshita Approximation of functions by Stancu variant of genuine Gupta-Srivastava operators. (English) Zbl 1505.41017 Palest. J. Math. 10, No. 2, 863-873 (2021). MSC: 41A36 26A15 41A81 PDFBibTeX XMLCite \textit{A. Kumar} and \textit{D. Khurana}, Palest. J. Math. 10, No. 2, 863--873 (2021; Zbl 1505.41017) Full Text: Link
Mazaheri, H.; Salehi, M. J. The convexity of Chebyshev sets in normed spaces. (English) Zbl 1513.46025 J. Mahani Math. Res. Cent. 10, No. 1, 111-117 (2021). MSC: 46B20 41A65 41A52 46N10 PDFBibTeX XMLCite \textit{H. Mazaheri} and \textit{M. J. Salehi}, J. Mahani Math. Res. Cent. 10, No. 1, 111--117 (2021; Zbl 1513.46025) Full Text: DOI
Lspir, Nurhayat; Deo, Naokant; Bhardwaj, Neha Approximation of Jain operators by statistical convergence. (English) Zbl 1504.41030 Thai J. Math. 19, No. 4, 1187-1197 (2021). Reviewer: José María Almira (Murcia) MSC: 41A36 26A15 41A25 41A30 41A63 PDFBibTeX XMLCite \textit{N. Lspir} et al., Thai J. Math. 19, No. 4, 1187--1197 (2021; Zbl 1504.41030) Full Text: Link
Alotaibi, Abdullah; Özger, Faruk; Mohiuddine, S. A.; Alghamdi, Mohammed A. Approximation of functions by a class of Durrmeyer-Stancu type operators which includes Euler’s beta function. (English) Zbl 1485.41009 Adv. Difference Equ. 2021, Paper No. 13, 14 p. (2021). MSC: 41A35 41A36 41A25 41A10 41A17 PDFBibTeX XMLCite \textit{A. Alotaibi} et al., Adv. Difference Equ. 2021, Paper No. 13, 14 p. (2021; Zbl 1485.41009) Full Text: DOI
Acu, Ana Maria; Raşa, Ioan On the composition and decomposition of positive linear operators (VII). (English) Zbl 1513.41017 Appl. Anal. Discrete Math. 15, No. 1, 213-232 (2021). MSC: 41A36 PDFBibTeX XMLCite \textit{A. M. Acu} and \textit{I. Raşa}, Appl. Anal. Discrete Math. 15, No. 1, 213--232 (2021; Zbl 1513.41017) Full Text: DOI
Rao, Nadeem; Wafi, Abdul Modified Szász operators involving Charlier polynomials based on two parameters. (English) Zbl 1527.41006 Thai J. Math. 19, No. 1, 131-144 (2021). MSC: 41A36 41A10 41A25 PDFBibTeX XMLCite \textit{N. Rao} and \textit{A. Wafi}, Thai J. Math. 19, No. 1, 131--144 (2021; Zbl 1527.41006) Full Text: Link
Hu, Yong-Mo; Cheng, Wen-Tao; Gui, Chun-Yan; Zhang, Wen-Hui On Stancu-type generalization of modified \((p,q)\)-Szász-Mirakjan-Kantorovich operators. (English) Zbl 1478.41007 J. Funct. Spaces 2021, Article ID 6683004, 11 p. (2021). MSC: 41A35 PDFBibTeX XMLCite \textit{Y.-M. Hu} et al., J. Funct. Spaces 2021, Article ID 6683004, 11 p. (2021; Zbl 1478.41007) Full Text: DOI
Jahn, Thomas; Richter, Christian Coproximinality of linear subspaces in generalized Minkowski spaces. (English) Zbl 1481.41016 J. Math. Anal. Appl. 504, No. 1, Article ID 125351, 10 p. (2021). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 41A50 51B20 PDFBibTeX XMLCite \textit{T. Jahn} and \textit{C. Richter}, J. Math. Anal. Appl. 504, No. 1, Article ID 125351, 10 p. (2021; Zbl 1481.41016) Full Text: DOI arXiv
Cai, Qing-Bo; Torun, Gülten; Dinlemez Kantar, Ülkü Approximation properties of generalized \(\lambda\)-Bernstein-Stancu-type operators. (English) Zbl 1477.41008 J. Math. 2021, Article ID 5590439, 17 p. (2021). MSC: 41A25 41A36 41A35 PDFBibTeX XMLCite \textit{Q.-B. Cai} et al., J. Math. 2021, Article ID 5590439, 17 p. (2021; Zbl 1477.41008) Full Text: DOI
Bucur, I.; Paltineanu, G. De Branges type lemma and approximation in weighted spaces. (English) Zbl 1473.41001 Mediterr. J. Math. 18, No. 3, Paper No. 120, 19 p. (2021). Reviewer: Zoltán Finta (Cluj-Napoca) MSC: 41A10 41A81 46J10 PDFBibTeX XMLCite \textit{I. Bucur} and \textit{G. Paltineanu}, Mediterr. J. Math. 18, No. 3, Paper No. 120, 19 p. (2021; Zbl 1473.41001) Full Text: DOI
Acu, Ana-Maria; Başcanbaz-Tunca, Gülen; Rasa, Ioan Differences of positive linear operators on simplices. (English) Zbl 1527.41004 J. Funct. Spaces 2021, Article ID 5531577, 11 p. (2021). MSC: 41A36 PDFBibTeX XMLCite \textit{A.-M. Acu} et al., J. Funct. Spaces 2021, Article ID 5531577, 11 p. (2021; Zbl 1527.41004) Full Text: DOI
Gürdal, M.; Savaş, E. A note on uniquely remotal sets in 2-Banach spaces. (English) Zbl 1474.46031 Electron. J. Math. Anal. Appl. 9, No. 2, 151-157 (2021). MSC: 46B20 41A50 41A65 PDFBibTeX XMLCite \textit{M. Gürdal} and \textit{E. Savaş}, Electron. J. Math. Anal. Appl. 9, No. 2, 151--157 (2021; Zbl 1474.46031) Full Text: Link
Nisar, Kottakkaran Sooppy; Sharma, Vinita; Khan, Asif Lupaş blending functions with shifted knots and \(q\)-Bézier curves. (English) Zbl 1503.33016 J. Inequal. Appl. 2020, Paper No. 184, 14 p. (2020). MSC: 33D90 53A05 65D17 41A10 41A25 41A36 05A30 PDFBibTeX XMLCite \textit{K. S. Nisar} et al., J. Inequal. Appl. 2020, Paper No. 184, 14 p. (2020; Zbl 1503.33016) Full Text: DOI
Mursaleen, M.; Qasim, Mohd; Khan, Asif; Abbas, Zaheer Stancu type \(q\)-Bernstein operators with shifted knots. (English) Zbl 1503.41005 J. Inequal. Appl. 2020, Paper No. 28, 14 p. (2020). MSC: 41A10 41A25 41A36 PDFBibTeX XMLCite \textit{M. Mursaleen} et al., J. Inequal. Appl. 2020, Paper No. 28, 14 p. (2020; Zbl 1503.41005) Full Text: DOI
Qasim, Mohd; Mursaleen, M.; Abbas, Zaheer; Khan, Asif Statistical approximation properties of Lupaş \(q\)-Bernstein shifted operators. (English) Zbl 1492.41006 Thai J. Math. 18, No. 3, 1081-1090 (2020). MSC: 41A25 41A10 41A36 PDFBibTeX XMLCite \textit{M. Qasim} et al., Thai J. Math. 18, No. 3, 1081--1090 (2020; Zbl 1492.41006) Full Text: Link
da Cunha, Rudnei D.; Oliveira, Elismar R.; Strobin, Filip A multiresolution algorithm to approximate the Hutchinson measure for IFS and GIFS. (English) Zbl 1453.28005 Commun. Nonlinear Sci. Numer. Simul. 91, Article ID 105423, 22 p. (2020). MSC: 28A80 37C70 41A65 65S05 PDFBibTeX XMLCite \textit{R. D. da Cunha} et al., Commun. Nonlinear Sci. Numer. Simul. 91, Article ID 105423, 22 p. (2020; Zbl 1453.28005) Full Text: DOI arXiv
Gal, Sorin G.; Niculescu, Constantin P. A nonlinear extension of Korovkin’s theorem. (English) Zbl 1508.41008 Mediterr. J. Math. 17, No. 5, Paper No. 145, 14 p. (2020). Reviewer: Tuncer Acar (Selcuklu) MSC: 41A35 41A36 41A63 PDFBibTeX XMLCite \textit{S. G. Gal} and \textit{C. P. Niculescu}, Mediterr. J. Math. 17, No. 5, Paper No. 145, 14 p. (2020; Zbl 1508.41008) Full Text: DOI arXiv
Acu, Ana-Maria; Dancs, Madalina; Radu, Voichiţa Adriana Representations for the inverses of certain operators. (English) Zbl 1441.41006 Commun. Pure Appl. Anal. 19, No. 8, 4097-4109 (2020). MSC: 41A35 41A25 41A36 PDFBibTeX XMLCite \textit{A.-M. Acu} et al., Commun. Pure Appl. Anal. 19, No. 8, 4097--4109 (2020; Zbl 1441.41006) Full Text: DOI
Mursaleen, Mohammad; Ansari, Khursheed J.; Khan, Asif Approximation properties and error estimation of q-Bernstein shifted operators. (English) Zbl 1508.41011 Numer. Algorithms 84, No. 1, 207-227 (2020). Reviewer: Tuncer Acar (Selcuklu) MSC: 41A36 41A10 41A25 PDFBibTeX XMLCite \textit{M. Mursaleen} et al., Numer. Algorithms 84, No. 1, 207--227 (2020; Zbl 1508.41011) Full Text: DOI
Lamberti, P.; Lamnii, M.; Remogna, S.; Sbibih, D. \(h\)-Bernstein basis functions over a triangular domain. (English) Zbl 1505.65072 Comput. Aided Geom. Des. 79, Article ID 101849, 13 p. (2020). MSC: 65D17 41A10 65D07 PDFBibTeX XMLCite \textit{P. Lamberti} et al., Comput. Aided Geom. Des. 79, Article ID 101849, 13 p. (2020; Zbl 1505.65072) Full Text: DOI
Mishra, Vishnu Narayan; Sharma, Preeti On approximation properties of generalized Lupaş-Durrmeyer operators with two parameters \(\alpha\) and \(\beta\) based on Polya distribution. (English) Zbl 1437.41012 Bol. Soc. Mat. Mex., III. Ser. 26, No. 1, 171-185 (2020). MSC: 41A36 41A81 47B38 PDFBibTeX XMLCite \textit{V. N. Mishra} and \textit{P. Sharma}, Bol. Soc. Mat. Mex., III. Ser. 26, No. 1, 171--185 (2020; Zbl 1437.41012) Full Text: DOI
Rahman, Shagufta; Mursaleen, Mohammad; Khan, Asif A Kantorovich variant of Lupaş-Stancu operators based on Pólya distribution with error estimation. (English) Zbl 1434.41020 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 114, No. 2, Paper No. 75, 26 p. (2020). MSC: 41A36 26A16 41A25 PDFBibTeX XMLCite \textit{S. Rahman} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 114, No. 2, Paper No. 75, 26 p. (2020; Zbl 1434.41020) Full Text: DOI
Kumar, Alok; Vandana Approximation properties of modified Srivastava-Gupta operators based on certain parameter. (English) Zbl 1431.41010 Bol. Soc. Parana. Mat. (3) 38, No. 1, 41-53 (2020). MSC: 41A25 26A15 40A35 PDFBibTeX XMLCite \textit{A. Kumar} and \textit{Vandana}, Bol. Soc. Parana. Mat. (3) 38, No. 1, 41--53 (2020; Zbl 1431.41010) Full Text: Link
Martín, Miguel On proximinality of subspaces and the lineability of the set of norm-attaining functionals of Banach spaces. (English) Zbl 1435.46008 J. Funct. Anal. 278, No. 4, Article ID 108353, 14 p. (2020). Reviewer: Olav Nygaard (Kristiansand) MSC: 46B04 46B03 46B20 46B87 41A65 PDFBibTeX XMLCite \textit{M. Martín}, J. Funct. Anal. 278, No. 4, Article ID 108353, 14 p. (2020; Zbl 1435.46008) Full Text: DOI arXiv
Patel, Prashantkumar Some approximation properties of new families of positive linear operators. (English) Zbl 1499.41075 Filomat 33, No. 17, 5477-5488 (2019). MSC: 41A36 41A25 41A30 PDFBibTeX XMLCite \textit{P. Patel}, Filomat 33, No. 17, 5477--5488 (2019; Zbl 1499.41075) Full Text: DOI arXiv
Deo, Naokant; Dhamija, Minakshi; Miclăuş, Dan New modified Baskakov operators based on the inverse Pólya-Eggenberger distribution. (English) Zbl 1499.41055 Filomat 33, No. 11, 3537-3550 (2019). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{N. Deo} et al., Filomat 33, No. 11, 3537--3550 (2019; Zbl 1499.41055) Full Text: DOI
Sucu, Sezgin Approximation by operators sequence involving a certain class of polynomials. (English) Zbl 1499.41083 Filomat 33, No. 10, 3149-3159 (2019). MSC: 41A36 41A81 PDFBibTeX XMLCite \textit{S. Sucu}, Filomat 33, No. 10, 3149--3159 (2019; Zbl 1499.41083) Full Text: DOI
Gupta, Vijay; Acu, Ana Maria On difference of operators with different basis functions. (English) Zbl 1499.41030 Filomat 33, No. 10, 3023-3034 (2019). MSC: 41A25 41A30 PDFBibTeX XMLCite \textit{V. Gupta} and \textit{A. M. Acu}, Filomat 33, No. 10, 3023--3034 (2019; Zbl 1499.41030) Full Text: DOI
Tripşa, Florenţa; Pascu, Nicolae R. Stochastic ordering of Pólya random variables and monotonicity of the Bernstein-Stancu operator for a negative parameter. (English) Zbl 1499.41084 J. Inequal. Appl. 2019, Paper No. 47, 10 p. (2019). MSC: 41A36 41A10 41A25 62E10 PDFBibTeX XMLCite \textit{F. Tripşa} and \textit{N. R. Pascu}, J. Inequal. Appl. 2019, Paper No. 47, 10 p. (2019; Zbl 1499.41084) Full Text: DOI
Gupta, Sahil; Narang, Tulsi Dass Best coapproximation in quotient spaces. (English) Zbl 1455.41007 Iran. J. Math. Sci. Inform. 14, No. 1, 13-20 (2019). MSC: 41A50 41A52 41A65 PDFBibTeX XMLCite \textit{S. Gupta} and \textit{T. D. Narang}, Iran. J. Math. Sci. Inform. 14, No. 1, 13--20 (2019; Zbl 1455.41007) Full Text: Link
Chandok, Sumit Best approximation and fixed points for rational-type contraction mappings. (English) Zbl 1434.41025 J. Appl. Anal. 25, No. 2, 205-209 (2019). MSC: 41A50 47H10 54H25 PDFBibTeX XMLCite \textit{S. Chandok}, J. Appl. Anal. 25, No. 2, 205--209 (2019; Zbl 1434.41025) Full Text: DOI
Çetin, Nursel; Radu, Voichiţa Adriana Approximation by generalized Bernstein-Stancu operators. (English) Zbl 1434.41014 Turk. J. Math. 43, No. 4, 2032-2048 (2019). MSC: 41A36 41A10 41A25 PDFBibTeX XMLCite \textit{N. Çetin} and \textit{V. A. Radu}, Turk. J. Math. 43, No. 4, 2032--2048 (2019; Zbl 1434.41014) Full Text: Link
Jegdić, Ilija; Simeonov, Plamen; Zafiris, Vasilis Quantum \((q, h)\)-Bézier surfaces based on bivariate \((q, h)\)-blossoming. (English) Zbl 1429.65038 Demonstr. Math. 52, 451-466 (2019). MSC: 65D17 41A10 PDFBibTeX XMLCite \textit{I. Jegdić} et al., Demonstr. Math. 52, 451--466 (2019; Zbl 1429.65038) Full Text: DOI
Shang, Shaoqiang; Cui, Yunan Continuity points and continuous selections of the set-valued metric generalized inverse in Banach spaces. (English) Zbl 1436.46016 Isr. J. Math. 234, No. 1, 209-228 (2019). Reviewer: Stefan Cobzaş (Cluj-Napoca) MSC: 46B20 41A65 47H04 47J07 PDFBibTeX XMLCite \textit{S. Shang} and \textit{Y. Cui}, Isr. J. Math. 234, No. 1, 209--228 (2019; Zbl 1436.46016) Full Text: DOI
Acu, Ana-Maria; Doǧru, Ogün; Muraru, Carmen Violeta; Radu, Voichiţa Adriana Approximation properties of certain Bernstein-Stancu type operators. (English) Zbl 1425.41005 J. Math. Inequal. 13, No. 3, Article No. 13-46, 687-702 (2019). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{A.-M. Acu} et al., J. Math. Inequal. 13, No. 3, Article No. 13--46, 687--702 (2019; Zbl 1425.41005) Full Text: DOI
Post, Olaf Approximations of metric graphs by thick graphs and their Laplacians. (English) Zbl 1423.41053 Symmetry 11, No. 3, Paper No. 369, 11 p. (2019). MSC: 41A65 35R02 PDFBibTeX XMLCite \textit{O. Post}, Symmetry 11, No. 3, Paper No. 369, 11 p. (2019; Zbl 1423.41053) Full Text: DOI
Kajla, Arun; Acar, Tuncer Modified \(\alpha\)-Bernstein operators with better approximation properties. (English) Zbl 1428.41026 Ann. Funct. Anal. 10, No. 4, 570-582 (2019). MSC: 41A36 41A10 41A25 PDFBibTeX XMLCite \textit{A. Kajla} and \textit{T. Acar}, Ann. Funct. Anal. 10, No. 4, 570--582 (2019; Zbl 1428.41026) Full Text: DOI Euclid
Aktaş, Rabia; Çekim, Bayram; Taşdelen, Fatma A Dunkl analogue of operators including two-variable Hermite polynomials. (English) Zbl 1423.41030 Bull. Malays. Math. Sci. Soc. (2) 42, No. 5, 2795-2805 (2019). MSC: 41A36 41A25 33C45 PDFBibTeX XMLCite \textit{R. Aktaş} et al., Bull. Malays. Math. Sci. Soc. (2) 42, No. 5, 2795--2805 (2019; Zbl 1423.41030) Full Text: DOI arXiv
Alimov, Alexey R. Solarity of sets in max-approximation problems. (English) Zbl 1442.41010 J. Fixed Point Theory Appl. 21, No. 3, Paper No. 76, 11 p. (2019). Reviewer: Jin Liang (Shanghai) MSC: 41A65 47H10 52A30 PDFBibTeX XMLCite \textit{A. R. Alimov}, J. Fixed Point Theory Appl. 21, No. 3, Paper No. 76, 11 p. (2019; Zbl 1442.41010) Full Text: DOI
Aral, Ali; Erbay, Hasan Parametric generalization of Baskakov operators. (English) Zbl 1423.41031 Math. Commun. 24, No. 1, 119-131 (2019). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{A. Aral} and \textit{H. Erbay}, Math. Commun. 24, No. 1, 119--131 (2019; Zbl 1423.41031) Full Text: Link
Kumar, Alok; Artee Direct estimates for certain summation-integral type operators. (English) Zbl 1414.41015 Palest. J. Math. 8, No. 2, 365-379 (2019). MSC: 41A36 41A25 26A15 40A35 PDFBibTeX XMLCite \textit{A. Kumar} and \textit{Artee}, Palest. J. Math. 8, No. 2, 365--379 (2019; Zbl 1414.41015) Full Text: Link
Pascu, Mihai Nicolae; Pascu, Nicolae Radu; Tripşa, Florenţa An error estimate for a Bernstein-Stancu operator with negative parameter. (English) Zbl 1407.41011 Result. Math. 74, No. 1, Paper No. 39, 11 p. (2019). MSC: 41A36 41A25 41A20 PDFBibTeX XMLCite \textit{M. N. Pascu} et al., Result. Math. 74, No. 1, Paper No. 39, 11 p. (2019; Zbl 1407.41011) Full Text: DOI
Jiang, Bing; Yu, Dansheng Approximation by Durrmeyer type Bernstein-Stancu polynomials in movable compact disks. (English) Zbl 1412.30123 Result. Math. 74, No. 1, Paper No. 28, 12 p. (2019). MSC: 30E10 30C10 41A25 PDFBibTeX XMLCite \textit{B. Jiang} and \textit{D. Yu}, Result. Math. 74, No. 1, Paper No. 28, 12 p. (2019; Zbl 1412.30123) Full Text: DOI
Kajla, Arun; Miclǎuş, Dan Approximation by Stancu-Durrmeyer type operators based on Pólya-Eggenberger distribution. (English) Zbl 1499.41068 Filomat 32, No. 12, 4249-4261 (2018). MSC: 41A36 26A15 41A25 PDFBibTeX XMLCite \textit{A. Kajla} and \textit{D. Miclǎuş}, Filomat 32, No. 12, 4249--4261 (2018; Zbl 1499.41068) Full Text: DOI
Kajla, Arun; Miclǎuş, Dan Some smoothness properties of the Lupaş-Kantorovich type operators based on Pólya distribution. (English) Zbl 1499.41067 Filomat 32, No. 11, 3867-3880 (2018). MSC: 41A36 26A15 41A25 PDFBibTeX XMLCite \textit{A. Kajla} and \textit{D. Miclǎuş}, Filomat 32, No. 11, 3867--3880 (2018; Zbl 1499.41067) Full Text: DOI
Bărbosu, Dan On the remainder term of some bivariate approximation formulas based on linear and positive operators. (English) Zbl 1463.41070 Constr. Math. Anal. 1, No. 2, 73-87 (2018). MSC: 41A80 41A36 PDFBibTeX XMLCite \textit{D. Bărbosu}, Constr. Math. Anal. 1, No. 2, 73--87 (2018; Zbl 1463.41070) Full Text: DOI
Mursaleen, M.; Al-Abied, A. A. H. Blending type approximation by Stancu-Kantorovich operators associated with the inverse Pólya-Eggenberger distribution. (English) Zbl 1435.41026 Tbil. Math. J. 11, No. 4, 79-91 (2018). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{M. Mursaleen} and \textit{A. A. H. Al-Abied}, Tbil. Math. J. 11, No. 4, 79--91 (2018; Zbl 1435.41026) Full Text: DOI Euclid
Neer, Trapti; Acu, Ana Maria; Agrawal, Purshottam Approximation of functions by bivariate \(q\)-Stancu-Durrmeyer type operators. (English) Zbl 1423.41035 Math. Commun. 23, No. 2, 161-180 (2018). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{T. Neer} et al., Math. Commun. 23, No. 2, 161--180 (2018; Zbl 1423.41035) Full Text: Link
Sadullaev, A.; Ibragimov, Z. The class \(R\) and finely analytic functions. (English. Russian original) Zbl 1411.30033 Sb. Math. 209, No. 8, 1234-1247 (2018); translation from Mat. Sb. 209, No. 8, 138-151 (2018). Reviewer: Yuri A. Farkov (Moscow) MSC: 30G12 41A20 30E10 PDFBibTeX XMLCite \textit{A. Sadullaev} and \textit{Z. Ibragimov}, Sb. Math. 209, No. 8, 1234--1247 (2018; Zbl 1411.30033); translation from Mat. Sb. 209, No. 8, 138--151 (2018) Full Text: DOI
Mishra, Vishnu Narayan; Patel, Prashantkumar; Mishra, Lakshmi Narayan The integral type modification of Jain operators and its approximation properties. (English) Zbl 1405.41013 Numer. Funct. Anal. Optim. 39, No. 12, 1265-1277 (2018). MSC: 41A36 41A25 41A30 PDFBibTeX XMLCite \textit{V. N. Mishra} et al., Numer. Funct. Anal. Optim. 39, No. 12, 1265--1277 (2018; Zbl 1405.41013) Full Text: DOI
Kumar, Alok; Tapiawala, Dipti; Mishra, Lakshmi Narayan Direct estimates for certain integral type operators. (English) Zbl 1413.41016 Eur. J. Pure Appl. Math. 11, No. 4, 958-975 (2018). MSC: 41A35 26A15 41A25 PDFBibTeX XMLCite \textit{A. Kumar} et al., Eur. J. Pure Appl. Math. 11, No. 4, 958--975 (2018; Zbl 1413.41016) Full Text: Link
Păltănea, Radu Asymptotic constant in approximation of twice differentiable functions by a class of positive linear operators. (English) Zbl 1393.41007 Result. Math. 73, No. 2, Paper No. 64, 10 p. (2018). MSC: 41A36 41A25 41A44 PDFBibTeX XMLCite \textit{R. Păltănea}, Result. Math. 73, No. 2, Paper No. 64, 10 p. (2018; Zbl 1393.41007) Full Text: DOI
Nasaireh, Fadel; Raşa, Ioan Another look at Voronovskaja type formulas. (English) Zbl 1391.41016 J. Math. Inequal. 12, No. 1, 95-105 (2018). MSC: 41A36 41A35 26D20 41A30 PDFBibTeX XMLCite \textit{F. Nasaireh} and \textit{I. Raşa}, J. Math. Inequal. 12, No. 1, 95--105 (2018; Zbl 1391.41016) Full Text: DOI
Kumar, Alok; Vandana Approximation by genuine Lupaş-Beta-Stancu operators. (English) Zbl 1388.41016 J. Appl. Math. Inform. 36, No. 1-2, 15-28 (2018). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{A. Kumar} and \textit{Vandana}, J. Appl. Math. Inform. 36, No. 1--2, 15--28 (2018; Zbl 1388.41016) Full Text: DOI
Agrawal, P. N.; Gupta, Pooja \(q\)-Lupas Kantorovich operators based on Polya distribution. (English) Zbl 1387.41011 Ann. Univ. Ferrara, Sez. VII, Sci. Mat. 64, No. 1, 1-23 (2018). MSC: 41A36 26A15 41A25 PDFBibTeX XMLCite \textit{P. N. Agrawal} and \textit{P. Gupta}, Ann. Univ. Ferrara, Sez. VII, Sci. Mat. 64, No. 1, 1--23 (2018; Zbl 1387.41011) Full Text: DOI
Kumar, Alok; Vandana Some approximation properties of generalized integral type operators. (English) Zbl 1384.41013 Tbil. Math. J. 11, No. 1, 99-116 (2018). MSC: 41A25 26A15 40A35 PDFBibTeX XMLCite \textit{A. Kumar} and \textit{Vandana}, Tbil. Math. J. 11, No. 1, 99--116 (2018; Zbl 1384.41013) Full Text: DOI
Milovanović, Gradimir V.; Mursaleen, M.; Nasiruzzaman, Md. Modified Stancu type Dunkl generalization of Szász-Kantorovich operators. (English) Zbl 1387.41007 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 112, No. 1, 135-151 (2018). MSC: 41A25 41A36 33C45 PDFBibTeX XMLCite \textit{G. V. Milovanović} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 112, No. 1, 135--151 (2018; Zbl 1387.41007) Full Text: DOI arXiv
Iranmanesh, Mahdi; Soleimany, Fatemeh A new method for approximation of closed convex subsets of \(B(H)\). (English) Zbl 1502.47011 Filomat 31, No. 19, 6005-6013 (2017). MSC: 47A12 41A65 41A50 PDFBibTeX XMLCite \textit{M. Iranmanesh} and \textit{F. Soleimany}, Filomat 31, No. 19, 6005--6013 (2017; Zbl 1502.47011) Full Text: DOI
Altun, Ishak; Al Arifi, Nassir; Jleli, Mohamed; Lashin, Aref; Samet, Bessem A fixed point theorem for JS-contraction type mappings with applications to polynomial approximations. (English) Zbl 1477.54045 Filomat 31, No. 15, 4969-4978 (2017). MSC: 54H25 54E40 54E50 41A36 41A10 PDFBibTeX XMLCite \textit{I. Altun} et al., Filomat 31, No. 15, 4969--4978 (2017; Zbl 1477.54045) Full Text: DOI
Sababheh, M.; Yousef, A.; Khalil, R. Uniquely remotal sets in Banach spaces. (English) Zbl 1488.46032 Filomat 31, No. 9, 2773-2777 (2017). MSC: 46B20 41A50 41A65 PDFBibTeX XMLCite \textit{M. Sababheh} et al., Filomat 31, No. 9, 2773--2777 (2017; Zbl 1488.46032) Full Text: DOI
Neer, Trapti; Agrawal, P. N. A genuine family of Bernstein-Durrmeyer type operators based on Polya basis functions. (English) Zbl 1488.41059 Filomat 31, No. 9, 2611-2623 (2017). MSC: 41A36 26A45 40A35 PDFBibTeX XMLCite \textit{T. Neer} and \textit{P. N. Agrawal}, Filomat 31, No. 9, 2611--2623 (2017; Zbl 1488.41059) Full Text: DOI
Gupta, Sahil; Narang, T. D. Strong proximinality in metric spaces. (English) Zbl 1474.41075 Novi Sad J. Math. 47, No. 2, 107-116 (2017). MSC: 41A65 41A50 46B20 PDFBibTeX XMLCite \textit{S. Gupta} and \textit{T. D. Narang}, Novi Sad J. Math. 47, No. 2, 107--116 (2017; Zbl 1474.41075) Full Text: DOI
Gupta, Vijay; Acu, Ana Maria; Sofonea, Daniel Florin Approximation of Baskakov type Pólya-Durrmeyer operators. (English) Zbl 1411.41014 Appl. Math. Comput. 294, 318-331 (2017). MSC: 41A25 26A15 41A28 PDFBibTeX XMLCite \textit{V. Gupta} et al., Appl. Math. Comput. 294, 318--331 (2017; Zbl 1411.41014) Full Text: DOI
Altomare, F.; Cappelletti Montano, M.; Leonessa, V.; Raşa, I. Differential operators and approximation processes generated by Markov operators. (English) Zbl 1441.47014 Constanda, Christian (ed.) et al., Integral methods in science and engineering. Volume 1. Theoretical techniques. Based on talks given at the 14th international conference, Padova, Italy, July 25–29, 2016. Basel: Birkhäuser/Springer. 9-19 (2017). MSC: 47A58 47F05 47D06 47D07 41A36 45L05 45P05 47A05 60J35 PDFBibTeX XMLCite \textit{F. Altomare} et al., in: Integral methods in science and engineering. Volume 1. Theoretical techniques. Based on talks given at the 14th international conference, Padova, Italy, July 25--29, 2016. Basel: Birkhäuser/Springer. 9--19 (2017; Zbl 1441.47014) Full Text: DOI
Malik, Neha; Araci, Serkan; Beniwal, Man Singh Approximation of Durrmeyer type operators depending on certain parameters. (English) Zbl 1470.41012 Abstr. Appl. Anal. 2017, Article ID 5316150, 9 p. (2017). MSC: 41A35 41A25 PDFBibTeX XMLCite \textit{N. Malik} et al., Abstr. Appl. Anal. 2017, Article ID 5316150, 9 p. (2017; Zbl 1470.41012) Full Text: DOI
Birou, Marius Mihai New rates of convergence for the iterates of some positive linear operators. (English) Zbl 1375.41014 Mediterr. J. Math. 14, No. 3, Paper No. 129, 12 p. (2017). MSC: 41A36 41A25 PDFBibTeX XMLCite \textit{M. M. Birou}, Mediterr. J. Math. 14, No. 3, Paper No. 129, 12 p. (2017; Zbl 1375.41014) Full Text: DOI
Xu, Xiao-Wei; Zeng, Xiao-Ming; Goldman, Ron Shape preserving properties of univariate Lototsky-Bernstein operators. (English) Zbl 1376.41010 J. Approx. Theory 224, 13-42 (2017). Reviewer: Vijay Gupta (New Delhi) MSC: 41A20 41A36 PDFBibTeX XMLCite \textit{X.-W. Xu} et al., J. Approx. Theory 224, 13--42 (2017; Zbl 1376.41010) Full Text: DOI
Kumar, Alok; Mishra, Lakshmi Narayan Approximation by modified Jain-Baskakov-Stancu operators. (English) Zbl 1371.41021 Tbil. Math. J. 10, No. 2, 185-199 (2017). MSC: 41A25 26A15 40A35 PDFBibTeX XMLCite \textit{A. Kumar} and \textit{L. N. Mishra}, Tbil. Math. J. 10, No. 2, 185--199 (2017; Zbl 1371.41021) Full Text: DOI