Fernández-Martínez, Pedro; Signes, Teresa General reiteration theorems for \(\mathcal{R}\) and \(\mathcal{L}\) classes: mixed interpolation of \(\mathcal{R}\) and \(\mathcal{L}\)-spaces. (English) Zbl 07517576 Positivity 26, No. 3, Paper No. 47, 45 p. (2022). MSC: 46B70 46E30 26A12 PDF BibTeX XML Cite \textit{P. Fernández-Martínez} and \textit{T. Signes}, Positivity 26, No. 3, Paper No. 47, 45 p. (2022; Zbl 07517576) Full Text: DOI OpenURL
Acar, Tuncer; Draganov, Borislav R. A strong converse inequality for generalized sampling operators. (English) Zbl 07517130 Ann. Funct. Anal. 13, No. 3, Paper No. 36, 16 p. (2022). MSC: 41A17 41A25 41A27 41A35 41A40 94A20 PDF BibTeX XML Cite \textit{T. Acar} and \textit{B. R. Draganov}, Ann. Funct. Anal. 13, No. 3, Paper No. 36, 16 p. (2022; Zbl 07517130) Full Text: DOI OpenURL
Bajpeyi, Shivam; Kumar, A. Sathish; Mantellini, Ilaria Approximation by Durrmeyer type exponential sampling operators. (English) Zbl 07510811 Numer. Funct. Anal. Optim. 43, No. 1, 16-34 (2022). MSC: 41A35 30D10 94A20 41A25 PDF BibTeX XML Cite \textit{S. Bajpeyi} et al., Numer. Funct. Anal. Optim. 43, No. 1, 16--34 (2022; Zbl 07510811) Full Text: DOI OpenURL
Kolomoitsev, Yu.; Skopina, M. Uniform approximation by multivariate quasi-projection operators. (English) Zbl 07506380 Anal. Math. Phys. 12, No. 2, Paper No. 68, 23 p. (2022). MSC: 41A25 41A17 41A15 42B10 94A20 97N50 PDF BibTeX XML Cite \textit{Yu. Kolomoitsev} and \textit{M. Skopina}, Anal. Math. Phys. 12, No. 2, Paper No. 68, 23 p. (2022; Zbl 07506380) Full Text: DOI OpenURL
El Hamma, M.; Daher, R.; Djellab, N.; Khalil, Ch. On the equivalence of \(K\)-functionals and modulus of smoothness constructed by the generalized Fourier-Bessel transform. (English) Zbl 07492749 Afr. Mat. 33, No. 1, Paper No. 6, 8 p. (2022). MSC: 42B10 PDF BibTeX XML Cite \textit{M. El Hamma} et al., Afr. Mat. 33, No. 1, Paper No. 6, 8 p. (2022; Zbl 07492749) Full Text: DOI OpenURL
Karsli, Harun A complete extension of the Bernstein-Weierstrass theorem to the infinite interval \((-\infty,+\infty)\) via Chlodovsky polynomials. (English) Zbl 07486142 Adv. Oper. Theory 7, No. 2, Paper No. 15, 22 p. (2022). MSC: 41A36 41A10 41A25 PDF BibTeX XML Cite \textit{H. Karsli}, Adv. Oper. Theory 7, No. 2, Paper No. 15, 22 p. (2022; Zbl 07486142) Full Text: DOI OpenURL
Esslamzadeh, G. H.; Moazami Goodarzi, M.; Hormozi, M.; Lind, M. The modulus of \(p\)-variation and its applications. (English) Zbl 07457086 J. Fourier Anal. Appl. 28, No. 1, Paper No. 7, 39 p. (2022). MSC: 46E35 46B70 42A20 PDF BibTeX XML Cite \textit{G. H. Esslamzadeh} et al., J. Fourier Anal. Appl. 28, No. 1, Paper No. 7, 39 p. (2022; Zbl 07457086) Full Text: DOI arXiv OpenURL
Doktorski, Leo R. Ya.; Fernández-Martínez, Pedro; Signes, Teresa Reiteration theorem for \(\mathcal{R}\) and \(\mathcal{L}\)-spaces with the same parameter. (English) Zbl 07451078 J. Math. Anal. Appl. 508, No. 1, Article ID 125846, 32 p. (2022). MSC: 46B70 46E30 PDF BibTeX XML Cite \textit{L. R. Ya. Doktorski} et al., J. Math. Anal. Appl. 508, No. 1, Article ID 125846, 32 p. (2022; Zbl 07451078) Full Text: DOI arXiv OpenURL
El Hamma, Mohamed; Daher, Radouan; Djellab, Nisrine Equivalence of \(K\)-functionals and modulus of smoothness constructed by Cherednik-Opdam transform. (English) Zbl 07523337 Nihonkai Math. J. 32, No. 2, 79-89 (2021). MSC: 42B37 PDF BibTeX XML Cite \textit{M. El Hamma} et al., Nihonkai Math. J. 32, No. 2, 79--89 (2021; Zbl 07523337) Full Text: Link OpenURL
Agrawal, Purshottam Narain; Baxhaku, Behar; Kumar, Abhishek Approximation properties of generalized Baskakov operators. (English) Zbl 07513621 AIMS Math. 6, No. 7, 6986-7016 (2021). MSC: 41A36 41A25 PDF BibTeX XML Cite \textit{P. N. Agrawal} et al., AIMS Math. 6, No. 7, 6986--7016 (2021; Zbl 07513621) Full Text: DOI OpenURL
Sharma, Honey; Maurya, Ramapati Durrmeyer type modification of \((p, q)\)-Szász Mirakjan operators and their quantitative estimates. (English) Zbl 07473736 Creat. Math. Inform. 30, No. 1, 97-106 (2021). MSC: 41A25 41A35 PDF BibTeX XML Cite \textit{H. Sharma} and \textit{R. Maurya}, Creat. Math. Inform. 30, No. 1, 97--106 (2021; Zbl 07473736) Full Text: DOI OpenURL
Luo, Xiaoli; Dai, Lu; Lian, Honghai; Li, Mofa; Deng, Peng Load frequency stability analysis of power systems with probability distribution time-varying delays. (Chinese. English summary) Zbl 07448647 J. Syst. Sci. Math. Sci. 41, No. 5, 1245-1255 (2021). MSC: 93E15 93C80 93C43 PDF BibTeX XML Cite \textit{X. Luo} et al., J. Syst. Sci. Math. Sci. 41, No. 5, 1245--1255 (2021; Zbl 07448647) OpenURL
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 PDF BibTeX XML Cite \textit{L. Coroianu} et al., Numer. Funct. Anal. Optim. 42, No. 11, 1263--1286 (2021; Zbl 1483.41007) Full Text: DOI OpenURL
Aydin, İsmail; Akgün, Ramazan Weighted variable exponent grand Lebesgue spaces and inequalities of approximation. (English) Zbl 07424380 Hacet. J. Math. Stat. 50, No. 1, 199-215 (2021). MSC: 46E30 42A10 PDF BibTeX XML Cite \textit{İ. Aydin} and \textit{R. Akgün}, Hacet. J. Math. Stat. 50, No. 1, 199--215 (2021; Zbl 07424380) Full Text: DOI OpenURL
Astashkin, Sergey; Milman, Mario Extrapolation: stories and problems. (English) Zbl 07420660 Pure Appl. Funct. Anal. 6, No. 3, 651-707 (2021). MSC: 46B70 46B42 46M35 46E30 46E05 46B45 46L52 47B10 PDF BibTeX XML Cite \textit{S. Astashkin} and \textit{M. Milman}, Pure Appl. Funct. Anal. 6, No. 3, 651--707 (2021; Zbl 07420660) Full Text: arXiv Link OpenURL
Gogatishvili, Amiran On the stability of the Lions-Peetre method of real interpolation with functional parameter. (English) Zbl 07420658 Pure Appl. Funct. Anal. 6, No. 3, 615-630 (2021). MSC: 46B70 46M35 46E30 PDF BibTeX XML Cite \textit{A. Gogatishvili}, Pure Appl. Funct. Anal. 6, No. 3, 615--630 (2021; Zbl 07420658) Full Text: arXiv Link OpenURL
Breit, Dominic; Cianchi, Andrea Symmetric gradient Sobolev spaces endowed with rearrangement-invariant norms. (English) Zbl 07408025 Adv. Math. 391, Article ID 107954, 101 p. (2021). MSC: 46E35 46E30 PDF BibTeX XML Cite \textit{D. Breit} and \textit{A. Cianchi}, Adv. Math. 391, Article ID 107954, 101 p. (2021; Zbl 07408025) Full Text: DOI arXiv OpenURL
Han, L.-X.; Guo, B.-N. Direct, inverse, and equivalence theorems for weighted Szász-Durrmeyer-Bézier operators in Orlicz spaces. (English) Zbl 07393070 Anal. Math. 47, No. 3, 569-592 (2021). Reviewer: Antonio López-Carmona (Granada) MSC: 41A35 41A17 41A27 PDF BibTeX XML Cite \textit{L. X. Han} and \textit{B. N. Guo}, Anal. Math. 47, No. 3, 569--592 (2021; Zbl 07393070) Full Text: DOI OpenURL
Kumar, Abhishek A new kind of variant of the Kantorovich type modification operators introduced by D. D. Stancu. (English) Zbl 1477.41011 Results Appl. Math. 11, Article ID 100158, 19 p. (2021). MSC: 41A36 26A15 PDF BibTeX XML Cite \textit{A. Kumar}, Results Appl. Math. 11, Article ID 100158, 19 p. (2021; Zbl 1477.41011) Full Text: DOI OpenURL
Bajpeyi, Shivam; Kumar, A. Sathish On approximation by Kantorovich exponential sampling operators. (English) Zbl 1472.41009 Numer. Funct. Anal. Optim. 42, No. 9, 1096-1113 (2021). Reviewer: Naokant Deo (Delhi) MSC: 41A35 26A15 30D10 94A20 PDF BibTeX XML Cite \textit{S. Bajpeyi} and \textit{A. S. Kumar}, Numer. Funct. Anal. Optim. 42, No. 9, 1096--1113 (2021; Zbl 1472.41009) Full Text: DOI arXiv OpenURL
Khan, A.; Abbas, Z.; Qasim, M.; Mursaleen, M. Approximation by modified Lupaş-Stancu operators based on \((p, q)\)-integers. (English) Zbl 07382393 Eurasian Math. J. 12, No. 2, 39-51 (2021). MSC: 41A36 41A10 41A25 PDF BibTeX XML Cite \textit{A. Khan} et al., Eurasian Math. J. 12, No. 2, 39--51 (2021; Zbl 07382393) Full Text: DOI MNR OpenURL
Gadjev, Ivan; Parvanov, Parvan E. Weighted approximation of functions by the Szász-Mirakjan-Kantorovich operator. (English) Zbl 1471.41016 Result. Math. 76, No. 3, Paper No. 158, 20 p. (2021). MSC: 41A81 41A17 41A36 PDF BibTeX XML Cite \textit{I. Gadjev} and \textit{P. E. Parvanov}, Result. Math. 76, No. 3, Paper No. 158, 20 p. (2021; Zbl 1471.41016) Full Text: DOI OpenURL
Draganov, Borislav R. Direct estimates of the weighted simultaneous approximation by the Szász-Mirakjan operator. (English) Zbl 07377576 Period. Math. Hung. 83, No. 1, 88-109 (2021). Reviewer: Daniel Cárdenas Morales (Jaén) MSC: 41A81 41A17 41A25 41A28 41A35 PDF BibTeX XML Cite \textit{B. R. Draganov}, Period. Math. Hung. 83, No. 1, 88--109 (2021; Zbl 07377576) Full Text: DOI OpenURL
Fan, Dashan; Zhao, Junyan Bochner-Riesz means and K-functional on compact manifolds. (English) Zbl 1469.42017 Result. Math. 76, No. 3, Paper No. 140, 17 p. (2021). MSC: 42B15 42B30 47B38 58J40 41A17 46E15 PDF BibTeX XML Cite \textit{D. Fan} and \textit{J. Zhao}, Result. Math. 76, No. 3, Paper No. 140, 17 p. (2021; Zbl 1469.42017) Full Text: DOI OpenURL
Besoy, Blanca F.; Cobos, Fernando The equivalence theorem for logarithmic interpolation spaces in the quasi-Banach case. (English) Zbl 1479.46087 Z. Anal. Anwend. 40, No. 1, 1-32 (2021). MSC: 46M35 46B70 PDF BibTeX XML Cite \textit{B. F. Besoy} and \textit{F. Cobos}, Z. Anal. Anwend. 40, No. 1, 1--32 (2021; Zbl 1479.46087) Full Text: DOI OpenURL
He, Shaoyong Approximation properties of combination of multivariate averages on Triebel-Lizorkin spaces. (English) Zbl 1466.42018 J. Math. Inequal. 15, No. 1, 357-374 (2021). MSC: 42B35 41A17 46E35 PDF BibTeX XML Cite \textit{S. He}, J. Math. Inequal. 15, No. 1, 357--374 (2021; Zbl 1466.42018) Full Text: DOI OpenURL
Agratini, Octavian Approximation properties of a family of integral type operators. (English) Zbl 1466.41009 Positivity 25, No. 1, 97-108 (2021). Reviewer: D. K. Ugulava (Tbilisi) MSC: 41A36 41A25 PDF BibTeX XML Cite \textit{O. Agratini}, Positivity 25, No. 1, 97--108 (2021; Zbl 1466.41009) Full Text: DOI OpenURL
Bouhlal, A.; Achak, A.; Daher, R.; Safouane, N. Dini-Lipschitz functions for the quaternion linear canonical transform. (English) Zbl 1470.44004 Rend. Circ. Mat. Palermo (2) 70, No. 1, 199-215 (2021). MSC: 44A15 41A25 42B10 42B37 PDF BibTeX XML Cite \textit{A. Bouhlal} et al., Rend. Circ. Mat. Palermo (2) 70, No. 1, 199--215 (2021; Zbl 1470.44004) Full Text: DOI OpenURL
Daher, Radouan; Tyr, Othman Modulus of smoothness and theorems concerning approximation in the space \(L^2_{q,\alpha}(\mathbb{R}_q)\) with power weight. (English) Zbl 1467.41009 Mediterr. J. Math. 18, No. 2, Paper No. 69, 16 p. (2021). MSC: 41A36 33D15 44A20 PDF BibTeX XML Cite \textit{R. Daher} and \textit{O. Tyr}, Mediterr. J. Math. 18, No. 2, Paper No. 69, 16 p. (2021; Zbl 1467.41009) Full Text: DOI OpenURL
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 PDF BibTeX XML Cite \textit{L. Coroianu} et al., Anal. Appl., Singap. 19, No. 2, 219--244 (2021; Zbl 1464.41004) Full Text: DOI OpenURL
Kumar, Vishvesh; Ruzhansky, Michael A note on \(K\)-functional, modulus of smoothness, Jackson theorem and Bernstein-Nikolskii-Stechkin inequality on Damek-Ricci spaces. (English) Zbl 1464.41007 J. Approx. Theory 264, Article ID 105537, 13 p. (2021). Reviewer: Włodzimierz Łenski (Poznań) MSC: 41A25 42A38 PDF BibTeX XML Cite \textit{V. Kumar} and \textit{M. Ruzhansky}, J. Approx. Theory 264, Article ID 105537, 13 p. (2021; Zbl 1464.41007) Full Text: DOI arXiv OpenURL
Almira, J. M.; Fernández-Martínez, P. On slow decay of Peetre’s \(K\)-functional. (English) Zbl 1457.41007 J. Math. Anal. Appl. 494, No. 2, Article ID 124653, 12 p. (2021). MSC: 41A25 41A10 46B70 PDF BibTeX XML Cite \textit{J. M. Almira} and \textit{P. Fernández-Martínez}, J. Math. Anal. Appl. 494, No. 2, Article ID 124653, 12 p. (2021; Zbl 1457.41007) Full Text: DOI arXiv OpenURL
Fernández-Martínez, Pedro; Signes, Teresa M. General reiteration theorems for \(\mathcal{R}\) and \(\mathcal{L}\) classes: case of left \(\mathcal{R} \)-spaces and right \(\mathcal{L} \)-spaces. (English) Zbl 1470.46042 J. Math. Anal. Appl. 494, No. 2, Article ID 124649, 33 p. (2021). MSC: 46B70 46E30 46M35 PDF BibTeX XML Cite \textit{P. Fernández-Martínez} and \textit{T. M. Signes}, J. Math. Anal. Appl. 494, No. 2, Article ID 124649, 33 p. (2021; Zbl 1470.46042) Full Text: DOI OpenURL
Nasiruzzaman, M.; Mursaleen, M. Approximation by Jakimovski-Leviatan-beta operators in weighted space. (English) Zbl 07489607 Adv. Difference Equ. 2020, Paper No. 393, 10 p. (2020). MSC: 41A10 41A25 41A36 33C65 33C45 33D05 PDF BibTeX XML Cite \textit{M. Nasiruzzaman} and \textit{M. Mursaleen}, Adv. Difference Equ. 2020, Paper No. 393, 10 p. (2020; Zbl 07489607) Full Text: DOI OpenURL
Mursaleen, M.; Qasim, Mohd; Khan, Asif; Abbas, Zaheer Stancu type \(q\)-Bernstein operators with shifted knots. (English) Zbl 07460809 J. Inequal. Appl. 2020, Paper No. 28, 14 p. (2020). MSC: 41A10 41A25 41A36 PDF BibTeX XML Cite \textit{M. Mursaleen} et al., J. Inequal. Appl. 2020, Paper No. 28, 14 p. (2020; Zbl 07460809) Full Text: DOI OpenURL
Mishra, Vishnu Narayan; Gandhi, R. B. Direct result for a summation-integral type modification of Szasz-Mirakjan operators. (English) Zbl 1474.41062 Anal. Theory Appl. 36, No. 2, 217-224 (2020). MSC: 41A36 41A10 41A25 PDF BibTeX XML Cite \textit{V. N. Mishra} and \textit{R. B. Gandhi}, Anal. Theory Appl. 36, No. 2, 217--224 (2020; Zbl 1474.41062) Full Text: DOI OpenURL
Parvanov, P. E. Weighted approximation of functions in \(L_p\)-norm by Baskakov-Kantorovich operator. (English) Zbl 1474.41082 Anal. Math. 46, No. 4, 821-842 (2020). Reviewer: Włodzimierz Łenski (Poznań) MSC: 41A81 41A17 41A27 41A25 41A36 PDF BibTeX XML Cite \textit{P. E. Parvanov}, Anal. Math. 46, No. 4, 821--842 (2020; Zbl 1474.41082) Full Text: DOI OpenURL
Gadjev, Ivan; Uluchev, Rumen Strong converse result for weighted approximation by Baskakov-Kantorovich operator. (English) Zbl 1460.41013 Draganov, Borislav (ed.) et al., Constructive theory of functions. Proceedings of the 13th international conference, Sozopol, Bulgaria, June 2–8, 2019. Dedicated to the memory of Blagovest Sendov. Sofia: Prof. Marin Drinov Academic Publishing House. 53-71 (2020). MSC: 41A36 41A25 41A27 41A17 PDF BibTeX XML Cite \textit{I. Gadjev} and \textit{R. Uluchev}, in: Constructive theory of functions. Proceedings of the 13th international conference, Sozopol, Bulgaria, June 2--8, 2019. Dedicated to the memory of Blagovest Sendov. Sofia: Prof. Marin Drinov Academic Publishing House. 53--71 (2020; Zbl 1460.41013) Full Text: Link OpenURL
Shabozov, M. Sh.; Saidusaynov, M. S. Approximation of functions of a complex variable by Fourier sums in orthogonal systems in \(L_2\). (English. Russian original) Zbl 1462.41004 Russ. Math. 64, No. 6, 56-62 (2020); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2020, No. 6, 65-72 (2020). Reviewer: Daniel Cárdenas Morales (Jaén) MSC: 41A17 30E10 42A38 46E30 PDF BibTeX XML Cite \textit{M. Sh. Shabozov} and \textit{M. S. Saidusaynov}, Russ. Math. 64, No. 6, 56--62 (2020; Zbl 1462.41004); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2020, No. 6, 65--72 (2020) Full Text: DOI OpenURL
Xie, Linsen; Wang, Shuli; Zhao, Kaifei The saturation class for linear combinations of Szász-Mirakjan operators. (English) Zbl 1457.41017 Int. J. Wavelets Multiresolut. Inf. Process. 18, No. 6, Article ID 2050044, 16 p. (2020). MSC: 41A36 41A40 PDF BibTeX XML Cite \textit{L. Xie} et al., Int. J. Wavelets Multiresolut. Inf. Process. 18, No. 6, Article ID 2050044, 16 p. (2020; Zbl 1457.41017) Full Text: DOI OpenURL
Lian, Honghai; Xiao, Shenping; Deng, Peng New methods of stability analysis for sampled-data control systems. (Chinese. English summary) Zbl 1463.93212 J. Syst. Sci. Math. Sci. 40, No. 5, 783-796 (2020). MSC: 93D20 93C57 PDF BibTeX XML Cite \textit{H. Lian} et al., J. Syst. Sci. Math. Sci. 40, No. 5, 783--796 (2020; Zbl 1463.93212) OpenURL
Zakwan, Muhammad; Ahmed, Saeed Dwell-time based stability analysis and \(\mathcal{L}_2\) control of LPV systems with piecewise constant parameters and delay. (English) Zbl 1454.93215 Syst. Control Lett. 145, Article ID 104805, 9 p. (2020). MSC: 93D05 93C43 93C05 PDF BibTeX XML Cite \textit{M. Zakwan} and \textit{S. Ahmed}, Syst. Control Lett. 145, Article ID 104805, 9 p. (2020; Zbl 1454.93215) Full Text: DOI arXiv OpenURL
Draganov, Borislav R. Direct estimates of the weighted simultaneous approximation by the Baskakov operator. (English) Zbl 1454.41003 Result. Math. 75, No. 4, Paper No. 156, 31 p. (2020). Reviewer: Zoltán Finta (Cluj-Napoca) MSC: 41A17 41A25 41A28 41A35 41A81 PDF BibTeX XML Cite \textit{B. R. Draganov}, Result. Math. 75, No. 4, Paper No. 156, 31 p. (2020; Zbl 1454.41003) Full Text: DOI OpenURL
El Ouadih, S. An equivalence theorem for a \(K\)-functional constructed by Beltrami-Laplace operator on symmetric spaces. (English) Zbl 1462.43006 J. Pseudo-Differ. Oper. Appl. 11, No. 4, 1951-1962 (2020). Reviewer: Jorge Vargas (Córdoba) MSC: 43A85 53C35 46M35 44A20 PDF BibTeX XML Cite \textit{S. El Ouadih}, J. Pseudo-Differ. Oper. Appl. 11, No. 4, 1951--1962 (2020; Zbl 1462.43006) Full Text: DOI OpenURL
Guo, Dandan; Qi, Qiulan Approximation properties of \(\lambda\)-Kantorovich operators. (Chinese. English summary) Zbl 1463.41042 Pure Appl. Math. 36, No. 1, 67-73 (2020). MSC: 41A35 PDF BibTeX XML Cite \textit{D. Guo} and \textit{Q. Qi}, Pure Appl. Math. 36, No. 1, 67--73 (2020; Zbl 1463.41042) Full Text: DOI OpenURL
Ghorbanalizadeh, Arash; Seraji, Reza Roohi On the equivalence of the \(K\)-functional and the modulus of continuity on the periodic variable exponent Morrey spaces. (English) Zbl 1463.46049 Period. Math. Hung. 80, No. 2, 185-194 (2020). Reviewer: Dirk Werner (Berlin) MSC: 46E30 46B70 41A25 26A15 PDF BibTeX XML Cite \textit{A. Ghorbanalizadeh} and \textit{R. R. Seraji}, Period. Math. Hung. 80, No. 2, 185--194 (2020; Zbl 1463.46049) Full Text: DOI OpenURL
Gorbachev, D. V.; Ivanov, V. I.; Tikhonov, S. Yu. Sharp approximation theorems and Fourier inequalities in the Dunkl setting. (English) Zbl 1452.42006 J. Approx. Theory 258, Article ID 105462, 30 p. (2020). Reviewer: Elijah Liflyand (Ramat-Gan) MSC: 42B10 33C45 33C52 41A50 42A10 PDF BibTeX XML Cite \textit{D. V. Gorbachev} et al., J. Approx. Theory 258, Article ID 105462, 30 p. (2020; Zbl 1452.42006) Full Text: DOI arXiv OpenURL
Astashkin, Sergey V. A version of Calderón-Mityagin theorem for the class of rearrangement invariant groups. (English) Zbl 1465.46023 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 200, Article ID 112063, 11 p. (2020). MSC: 46B70 46B45 PDF BibTeX XML Cite \textit{S. V. Astashkin}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 200, Article ID 112063, 11 p. (2020; Zbl 1465.46023) Full Text: DOI arXiv OpenURL
Kolomoitsev, Yurii; Tikhonov, Sergey Properties of moduli of smoothness in \(L_p (\mathbb{R}^d)\). (English) Zbl 1450.41004 J. Approx. Theory 257, Article ID 105423, 28 p. (2020). Reviewer: Alexei Lukashov (Saratov) MSC: 41A17 26A15 26A33 26D15 41A25 41A63 46E35 PDF BibTeX XML Cite \textit{Y. Kolomoitsev} and \textit{S. Tikhonov}, J. Approx. Theory 257, Article ID 105423, 28 p. (2020; Zbl 1450.41004) Full Text: DOI arXiv OpenURL
Muraru, Carmen; Doğru, Ogün; Gülsün, Aslıhan \(A\)-statistical \(L_p\) approximation properties of an integral variant of a general positive linear operators. (English) Zbl 1443.41014 Ann. Funct. Anal. 11, No. 3, 761-779 (2020). MSC: 41A36 41A10 41A25 PDF BibTeX XML Cite \textit{C. Muraru} et al., Ann. Funct. Anal. 11, No. 3, 761--779 (2020; Zbl 1443.41014) Full Text: DOI OpenURL
Han, Ling-Xiong; Li, Wen-Hui; Qi, Feng Approximation by multivariate Baskakov-Kantorovich operators in Orlicz spaces. (English) Zbl 1448.41020 Electron Res. Arch. 28, No. 2, 721-738 (2020). Reviewer: Zoltán Finta (Cluj-Napoca) MSC: 41A36 41A17 PDF BibTeX XML Cite \textit{L.-X. Han} et al., Electron Res. Arch. 28, No. 2, 721--738 (2020; Zbl 1448.41020) Full Text: DOI OpenURL
Omel’chenko, N. V.; Runovskii, K. V. Realizations of mixed generalized \(K\)-functionals. (English. Russian original) Zbl 1442.42056 Math. Notes 107, No. 2, 353-356 (2020); translation from Mat. Zametki 107, No. 2, 307-310 (2020). MSC: 42B35 42A38 PDF BibTeX XML Cite \textit{N. V. Omel'chenko} and \textit{K. V. Runovskii}, Math. Notes 107, No. 2, 353--356 (2020; Zbl 1442.42056); translation from Mat. Zametki 107, No. 2, 307--310 (2020) OpenURL
Shabozov, M. Sh.; Khuromonov, Kh. M. On the best approximation in the mean of functions of a complex variable by Fourier series in the Bergman space. (English. Russian original) Zbl 1443.41009 Russ. Math. 64, No. 2, 66-83 (2020); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2020, No. 2, 74-92 (2020). MSC: 41A17 41A10 43A50 PDF BibTeX XML Cite \textit{M. Sh. Shabozov} and \textit{Kh. M. Khuromonov}, Russ. Math. 64, No. 2, 66--83 (2020; Zbl 1443.41009); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2020, No. 2, 74--92 (2020) Full Text: DOI OpenURL
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 PDF BibTeX XML Cite \textit{L. Coroianu} et al., Commun. Pure Appl. Anal. 19, No. 8, 4213--4225 (2020; Zbl 1472.41011) Full Text: DOI OpenURL
Sheng, Baohuai; Liu, Huanxiang; Wang, Huimin Learning rates for the kernel regularized regression with a differentiable strongly convex loss. (English) Zbl 1445.68193 Commun. Pure Appl. Anal. 19, No. 8, 3973-4005 (2020). MSC: 68T05 46E22 62J02 90C25 PDF BibTeX XML Cite \textit{B. Sheng} et al., Commun. Pure Appl. Anal. 19, No. 8, 3973--4005 (2020; Zbl 1445.68193) Full Text: DOI OpenURL
Mursaleen, Mohammad; Ansari, Khursheed J.; Khan, Asif Approximation properties and error estimation of q-Bernstein shifted operators. (English) Zbl 07202157 Numer. Algorithms 84, No. 1, 207-227 (2020). MSC: 41A36 41A10 41A25 PDF BibTeX XML Cite \textit{M. Mursaleen} et al., Numer. Algorithms 84, No. 1, 207--227 (2020; Zbl 07202157) Full Text: DOI OpenURL
Agrawal, P. N.; Acu, A. M.; Ruchi, R. \(q\)-generalized Bernstein-Durrmeyer polynomials. (English) Zbl 1439.41001 J. Math. Inequal. 14, No. 1, 211-235 (2020). Reviewer: Zoltán Finta (Cluj-Napoca) MSC: 41A10 41A25 41A36 41A60 PDF BibTeX XML Cite \textit{P. N. Agrawal} et al., J. Math. Inequal. 14, No. 1, 211--235 (2020; Zbl 1439.41001) Full Text: DOI OpenURL
Ahmed, Irshaad; Fiorenza, Alberto; Hafeez, Aneesa Some interpolation formulae for grand and small Lorentz spaces. (English) Zbl 1453.46019 Mediterr. J. Math. 17, No. 2, Paper No. 57, 21 p. (2020). MSC: 46E30 46B70 26D15 PDF BibTeX XML Cite \textit{I. Ahmed} et al., Mediterr. J. Math. 17, No. 2, Paper No. 57, 21 p. (2020; Zbl 1453.46019) Full Text: DOI OpenURL
Sheng, Bao-Huai; Wang, Jian-Li On the \(K\)-functional in learning theory. (English) Zbl 1434.68452 Anal. Appl., Singap. 18, No. 3, 423-446 (2020). MSC: 68T05 41A25 41A35 42A20 47B32 PDF BibTeX XML Cite \textit{B.-H. Sheng} and \textit{J.-L. Wang}, Anal. Appl., Singap. 18, No. 3, 423--446 (2020; Zbl 1434.68452) Full Text: DOI OpenURL
Alotaibi, Abdullah Approximation by a generalized class of Dunkl type Szász operators based on post quantum calculus. (English) Zbl 07459269 J. Inequal. Appl. 2019, Paper No. 241, 10 p. (2019). MSC: 41A25 41A36 33C45 PDF BibTeX XML Cite \textit{A. Alotaibi}, J. Inequal. Appl. 2019, Paper No. 241, 10 p. (2019; Zbl 07459269) Full Text: DOI OpenURL
Han, Ling-Xiong; Guo, Bai-Ni; Qi, Feng Equivalent theorem of approximation by linear combination of weighted Baskakov-Kantorovich operators in Orlicz spaces. (English) Zbl 07459251 J. Inequal. Appl. 2019, Paper No. 223, 18 p. (2019). MSC: 41A17 41A27 41A35 PDF BibTeX XML Cite \textit{L.-X. Han} et al., J. Inequal. Appl. 2019, Paper No. 223, 18 p. (2019; Zbl 07459251) Full Text: DOI OpenURL
Nasiruzzaman, Md; Rao, Nadeem; Wazir, Samar; Kumar, Ravi Approximation on parametric extension of Baskakov-Durrmeyer operators on weighted spaces. (English) Zbl 07459131 J. Inequal. Appl. 2019, Paper No. 103, 11 p. (2019). MSC: 41A25 41A36 33C45 PDF BibTeX XML Cite \textit{M. Nasiruzzaman} et al., J. Inequal. Appl. 2019, Paper No. 103, 11 p. (2019; Zbl 07459131) Full Text: DOI OpenURL
Ahmed, İrshaad; Umar, Fakhra Reiteration of a limiting real interpolation method with broken iterated logarithmic functions. (English) Zbl 07411410 Hacet. J. Math. Stat. 48, No. 4, 966-972 (2019). MSC: 46B70 46E30 PDF BibTeX XML Cite \textit{İ. Ahmed} and \textit{F. Umar}, Hacet. J. Math. Stat. 48, No. 4, 966--972 (2019; Zbl 07411410) Full Text: Link OpenURL
Gao, Yuan; Wu, Garidi Approximation of a kind of linear combination operators of Post-Widder in the Orlicz spaces. (Chinese. English summary) Zbl 1463.41040 Numer. Math., Nanjing 41, No. 4, 333-345 (2019). MSC: 41A35 41A25 PDF BibTeX XML Cite \textit{Y. Gao} and \textit{G. Wu}, Numer. Math., Nanjing 41, No. 4, 333--345 (2019; Zbl 1463.41040) OpenURL
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 PDF BibTeX XML Cite \textit{S. G. Gal} and \textit{S. Trifa}, Constr. Math. Anal. 2, No. 1, 15--21 (2019; Zbl 1463.41038) Full Text: DOI OpenURL
Guan, Xinguo; He, Cuiling; Zhong, Yu; Wang, Chunju Approximation of the modified binary Gauss-Weierstrass operator in \({L_p} (\mathbb R_+^2)\). (Chinese. English summary) Zbl 1449.41017 J. Yunnan Minzu Univ., Nat. Sci. 28, No. 6, 571-575 (2019). MSC: 41A35 PDF BibTeX XML Cite \textit{X. Guan} et al., J. Yunnan Minzu Univ., Nat. Sci. 28, No. 6, 571--575 (2019; Zbl 1449.41017) Full Text: DOI OpenURL
Gorbachev, D. V.; Ivanov, V. I. Fractional smoothness in \(L^p\) with Dunkl weight and its applications. (English) Zbl 1435.42007 Math. Notes 106, No. 4, 537-561 (2019). Reviewer: Marcel G. de Bruin (Heemstede) MSC: 42B10 47B38 33C45 33C52 26A15 41A17 41A27 46E30 46E35 PDF BibTeX XML Cite \textit{D. V. Gorbachev} and \textit{V. I. Ivanov}, Math. Notes 106, No. 4, 537--561 (2019; Zbl 1435.42007) Full Text: DOI arXiv OpenURL
Shabozov, M. Sh.; Dzhurakhonov, O. A. Upper bounds for the approximation of some classes of bivariate functions by triangular Fourier-Hermite sums in the space \(L_{2,p}(\mathbb{R}^2)\). (English) Zbl 1449.42044 Anal. Math. 45, No. 4, 823-840 (2019). Reviewer: Marcel G. de Bruin (Heemstede) MSC: 42C05 33C50 33C45 PDF BibTeX XML Cite \textit{M. Sh. Shabozov} and \textit{O. A. Dzhurakhonov}, Anal. Math. 45, No. 4, 823--840 (2019; Zbl 1449.42044) Full Text: DOI OpenURL
Blais, Eric; Canonne, Clément L.; Gur, Tom Distribution testing lower bounds via reductions from communication complexity. (English) Zbl 1440.68323 ACM Trans. Comput. Theory 11, No. 2, Article No. 6, 37 p. (2019). MSC: 68W20 68Q11 68Q17 PDF BibTeX XML Cite \textit{E. Blais} et al., ACM Trans. Comput. Theory 11, No. 2, Article No. 6, 37 p. (2019; Zbl 1440.68323) Full Text: DOI Link OpenURL
Balsamo, Simona; Mantellini, Ilaria On linear combinations of general exponential sampling series. (English) Zbl 1447.41006 Result. Math. 74, No. 4, Paper No. 180, 19 p. (2019). Reviewer: Zoltán Finta (Cluj-Napoca) MSC: 41A25 41A60 94A20 PDF BibTeX XML Cite \textit{S. Balsamo} and \textit{I. Mantellini}, Result. Math. 74, No. 4, Paper No. 180, 19 p. (2019; Zbl 1447.41006) Full Text: DOI OpenURL
Garg, Tarul; Acu, Ana Maria; Agrawal, P. N. Weighted approximation and GBS of Chlodowsky-Szász-Kantorovich type operators. (English) Zbl 1428.41025 Anal. Math. Phys. 9, No. 3, 1429-1448 (2019). MSC: 41A36 41A10 41A25 PDF BibTeX XML Cite \textit{T. Garg} et al., Anal. Math. Phys. 9, No. 3, 1429--1448 (2019; Zbl 1428.41025) Full Text: DOI OpenURL
Taşdelen, Fatma; Söylemez, Dilek; Aktaş, Rabia Dunkl-gamma type operators including Appell polynomials. (English) Zbl 1462.41007 Complex Anal. Oper. Theory 13, No. 7, 3359-3371 (2019). Reviewer: Daniel Cárdenas Morales (Jaén) MSC: 41A25 41A36 33C45 PDF BibTeX XML Cite \textit{F. Taşdelen} et al., Complex Anal. Oper. Theory 13, No. 7, 3359--3371 (2019; Zbl 1462.41007) Full Text: DOI arXiv OpenURL
Burenkov, Victor; Ghorbanalizadeh, Arash; Sawano, Yoshihiro On the equivalence of the \(K\)-functional and the modulus of continuity on the Morrey spaces. (English) Zbl 1440.46019 J. Approx. Theory 248, Article ID 105295, 19 p. (2019). MSC: 46B70 42B35 46E35 PDF BibTeX XML Cite \textit{V. Burenkov} et al., J. Approx. Theory 248, Article ID 105295, 19 p. (2019; Zbl 1440.46019) Full Text: DOI OpenURL
Mishra, Lakshmi Narayan; Kumar, Alok Direct estimates for Stancu variant of Lupaş-Durrmeyer operators based on Polya distribution. (English) Zbl 1449.41022 Khayyam J. Math. 5, No. 2, 51-64 (2019). MSC: 41A36 26A15 PDF BibTeX XML Cite \textit{L. N. Mishra} and \textit{A. Kumar}, Khayyam J. Math. 5, No. 2, 51--64 (2019; Zbl 1449.41022) Full Text: DOI OpenURL
El Hamma, Mohamed; Daher, Radouan Equivalence of \(K\)-functionals and modulus of smoothness constructed by generalized Jacobi transform. (English) Zbl 1457.33003 Integral Transforms Spec. Funct. 30, No. 12, 1018-1024 (2019). MSC: 33C45 42C15 PDF BibTeX XML Cite \textit{M. El Hamma} and \textit{R. Daher}, Integral Transforms Spec. Funct. 30, No. 12, 1018--1024 (2019; Zbl 1457.33003) Full Text: DOI OpenURL
Costarelli, Danilo; Vinti, Gianluca Quantitative estimates involving \(K\)-functionals for neural network-type operators. (English) Zbl 1457.41009 Appl. Anal. 98, No. 15, 2639-2647 (2019). MSC: 41A25 41A05 41A30 47A58 PDF BibTeX XML Cite \textit{D. Costarelli} and \textit{G. Vinti}, Appl. Anal. 98, No. 15, 2639--2647 (2019; Zbl 1457.41009) Full Text: DOI OpenURL
Akgün, Ramazan Direct theorems of trigonometric approximation for variable exponent Lebesgue spaces. (English) Zbl 1419.42001 Rev. Unión Mat. Argent. 60, No. 1, 121-135 (2019). MSC: 42A10 41A17 PDF BibTeX XML Cite \textit{R. Akgün}, Rev. Unión Mat. Argent. 60, No. 1, 121--135 (2019; Zbl 1419.42001) Full Text: Link OpenURL
Yang, Renming; Zang, Faye; Sun, Liying; Zhou, Pei; Zhang, Binghua Finite-time adaptive robust control of nonlinear time-delay uncertain systems with disturbance. (English) Zbl 1418.93136 Int. J. Robust Nonlinear Control 29, No. 4, 919-934 (2019). MSC: 93C40 93B35 93C10 93C41 93D21 93C55 PDF BibTeX XML Cite \textit{R. Yang} et al., Int. J. Robust Nonlinear Control 29, No. 4, 919--934 (2019; Zbl 1418.93136) Full Text: DOI OpenURL
Yang, Feisheng; He, Jing; Kang, Peipei; Pan, Quan Delay range-and-rate dependent stability criteria for systems with interval time-varying delay via a quasi-quadratic convex framework. (English) Zbl 1418.93208 Int. J. Robust Nonlinear Control 29, No. 8, 2494-2509 (2019). MSC: 93D05 93C15 93C05 PDF BibTeX XML Cite \textit{F. Yang} et al., Int. J. Robust Nonlinear Control 29, No. 8, 2494--2509 (2019; Zbl 1418.93208) Full Text: DOI OpenURL
Srivastava, H. M.; Mursaleen, M.; Nasiruzzaman, Md. Approximation by a class of \(q\)-beta operators of the second kind via the Dunkl-type generalization on weighted spaces. (English) Zbl 1416.41033 Complex Anal. Oper. Theory 13, No. 3, 1537-1556 (2019). MSC: 41A36 41A25 33C45 PDF BibTeX XML Cite \textit{H. M. Srivastava} et al., Complex Anal. Oper. Theory 13, No. 3, 1537--1556 (2019; Zbl 1416.41033) Full Text: DOI OpenURL
Chauhan, Ruchi; Baxhaku, Behar; Agrawal, Purshottam N. Szász type operators involving Charlier polynomials of blending type. (English) Zbl 1426.41013 Complex Anal. Oper. Theory 13, No. 3, 1197-1226 (2019). Reviewer: Gumrah Uysal (Karabuk) MSC: 41A25 41A35 26A15 PDF BibTeX XML Cite \textit{R. Chauhan} et al., Complex Anal. Oper. Theory 13, No. 3, 1197--1226 (2019; Zbl 1426.41013) Full Text: DOI OpenURL
Achak, Azzedine; Daher, R.; Dhaouadi, L.; Loualid, EL. An analog of Titchmarsh’s theorem for the \(q\)-Bessel transform. (English) Zbl 1415.33006 Ann. Univ. Ferrara, Sez. VII, Sci. Mat. 65, No. 1, 1-13 (2019). MSC: 33D15 47A05 PDF BibTeX XML Cite \textit{A. Achak} et al., Ann. Univ. Ferrara, Sez. VII, Sci. Mat. 65, No. 1, 1--13 (2019; Zbl 1415.33006) Full Text: DOI OpenURL
Mursaleen, M.; Ansari, Khursheed J. Some approximation results on two parametric \(q\)-Stancu-beta operators. (English) Zbl 1426.41029 Bull. Malays. Math. Sci. Soc. (2) 42, No. 2, 585-601 (2019). Reviewer: Gumrah Uysal (Karabuk) MSC: 41A36 41A10 41A25 PDF BibTeX XML Cite \textit{M. Mursaleen} and \textit{K. J. Ansari}, Bull. Malays. Math. Sci. Soc. (2) 42, No. 2, 585--601 (2019; Zbl 1426.41029) Full Text: DOI OpenURL
Baxhaku, Behar; Berisha, Artan Approximation by a sequence of operators of the Srivastava-Gupta type involving the Brenke polynomials with a certain parameter. (English) Zbl 1412.41025 Math. Methods Appl. Sci. 42, No. 6, 1984-1998 (2019). MSC: 41A36 26A45 41A30 PDF BibTeX XML Cite \textit{B. Baxhaku} and \textit{A. Berisha}, Math. Methods Appl. Sci. 42, No. 6, 1984--1998 (2019; Zbl 1412.41025) Full Text: DOI OpenURL
Gadjev, I. A direct theorem for MKZ-Kantorovich operator. (English) Zbl 1438.41033 Anal. Math. 45, No. 1, 25-38 (2019). Reviewer: Ioan Raşa (Cluj-Napoca) MSC: 41A36 41A17 41A25 41A27 PDF BibTeX XML Cite \textit{I. Gadjev}, Anal. Math. 45, No. 1, 25--38 (2019; Zbl 1438.41033) Full Text: DOI OpenURL
Artamonov, S.; Runovski, K.; Schmeisser, H.-J. Approximation by bandlimited functions, generalized \(K\)-functionals and generalized moduli of smoothness. (English) Zbl 1438.41013 Anal. Math. 45, No. 1, 1-24 (2019). Reviewer: D. K. Ugulawa (Tbilisi) MSC: 41A17 41A25 PDF BibTeX XML Cite \textit{S. Artamonov} et al., Anal. Math. 45, No. 1, 1--24 (2019; Zbl 1438.41013) Full Text: DOI OpenURL
Fan, Dashan; Lou, Zengjian; Wang, Zijian A note on iterated spherical average on Lebesgue spaces. (English) Zbl 1458.41006 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 180, 170-183 (2019). Reviewer: D. K. Ugulava (Tbilisi) MSC: 41A17 41A63 42B30 PDF BibTeX XML Cite \textit{D. Fan} et al., Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 180, 170--183 (2019; Zbl 1458.41006) Full Text: DOI OpenURL
Draganov, Borislav R.; Gadjev, Ivan Approximation of functions by the Szász-Mirakjan-Kantorovich operator. (English) Zbl 1411.41017 Numer. Funct. Anal. Optim. 40, No. 7, 803-824 (2019). MSC: 41A36 41A17 41A25 41A27 PDF BibTeX XML Cite \textit{B. R. Draganov} and \textit{I. Gadjev}, Numer. Funct. Anal. Optim. 40, No. 7, 803--824 (2019; Zbl 1411.41017) Full Text: DOI OpenURL
Sharma, Honey; Gupta, Cheena; Maurya, Ramapati On approximation by \((p,q)\)-Meyer-König-Zeller Durrmeyer operators. (English) Zbl 1412.41019 Khayyam J. Math. 5, No. 1, 113-124 (2019). MSC: 41A25 41A35 PDF BibTeX XML Cite \textit{H. Sharma} et al., Khayyam J. Math. 5, No. 1, 113--124 (2019; Zbl 1412.41019) Full Text: DOI arXiv OpenURL
Feng, Han; Krattenthaler, Christian; Xu, Yuan Best polynomial approximation on the triangle. (English) Zbl 1414.41018 J. Approx. Theory 241, 63-78 (2019). Reviewer: Alexey Alimov (Moskva) MSC: 41A50 33C50 42C10 PDF BibTeX XML Cite \textit{H. Feng} et al., J. Approx. Theory 241, 63--78 (2019; Zbl 1414.41018) Full Text: DOI arXiv OpenURL
Özkan, Esma Yıldız Approximation properties of Kantorovich type \(q\)-Balázs-Szabados operators. (English) Zbl 1409.41009 Demonstr. Math. 52, 10-19 (2019). MSC: 41A35 41A25 41A36 PDF BibTeX XML Cite \textit{E. Y. Özkan}, Demonstr. Math. 52, 10--19 (2019; Zbl 1409.41009) Full Text: DOI OpenURL
Özkan, Esma Yıldız; İspir, Nurhayat Approximation by \((p, q)\)-analogue of Balázs-Szabados operators. (English) Zbl 07465573 Filomat 32, No. 6, 2257-2271 (2018). MSC: 41A25 41A36 41A35 PDF BibTeX XML Cite \textit{E. Y. Özkan} and \textit{N. İspir}, Filomat 32, No. 6, 2257--2271 (2018; Zbl 07465573) Full Text: DOI OpenURL
Gadjev, Ivan; Parvanov, Parvan; Uluchev, Rumen Weighted approximation by Kanotrovich type modification of Meyer-König and Zeller operator. (English) Zbl 1474.41080 God. Sofiĭ. Univ., Fak. Mat. Inform. 105, 75-95 (2018). MSC: 41A81 41A25 41A36 PDF BibTeX XML Cite \textit{I. Gadjev} et al., God. Sofiĭ. Univ., Fak. Mat. Inform. 105, 75--95 (2018; Zbl 1474.41080) Full Text: Link OpenURL
Draganov, Borislav Strong converse inequalities for the weighted multivariate Bernstein-Durrmeyer operator on the simplex via multipliers. (English) Zbl 1474.41031 God. Sofiĭ. Univ., Fak. Mat. Inform. 105, 55-73 (2018). MSC: 41A27 41A36 PDF BibTeX XML Cite \textit{B. Draganov}, God. Sofiĭ. Univ., Fak. Mat. Inform. 105, 55--73 (2018; Zbl 1474.41031) Full Text: arXiv Link OpenURL
Mursaleen, Mohammad; Nasiruzzaman, Mohammad Approximation of modified Jakimovski-Leviatan-beta type operators. (English) Zbl 1463.41060 Constr. Math. Anal. 1, No. 2, 88-98 (2018). MSC: 41A36 41A25 PDF BibTeX XML Cite \textit{M. Mursaleen} and \textit{M. Nasiruzzaman}, Constr. Math. Anal. 1, No. 2, 88--98 (2018; Zbl 1463.41060) Full Text: DOI OpenURL
Sharma, Honey; Maurya, Ramapati; Gupta, Cheena Approximation properties of Kantorovich type modifications of \((p, q)\)-Meyer-König-Zeller operators. (English) Zbl 1463.41031 Constr. Math. Anal. 1, No. 1, 58-72 (2018). MSC: 41A25 41A35 PDF BibTeX XML Cite \textit{H. Sharma} et al., Constr. Math. Anal. 1, No. 1, 58--72 (2018; Zbl 1463.41031) Full Text: DOI OpenURL
Artamonov, Sergeĭ Yurievich On some constructions of a non-periodic modulus of smoothness related to the Riesz derivative. (English) Zbl 1463.42001 Eurasian Math. J. 9, No. 2, 11-21 (2018). MSC: 42A10 42A05 42A45 42A50 PDF BibTeX XML Cite \textit{S. Y. Artamonov}, Eurasian Math. J. 9, No. 2, 11--21 (2018; Zbl 1463.42001) Full Text: MNR OpenURL
Gadjev, Ivan Approximation of functions by some exponential-type operators. (English) Zbl 1445.41013 Ivanov, Kamen (ed.) et al., Constructive theory of functions. Proceedings of the 12th international conference, Sozopol, Bulgaria, June 11–17, 2016. Sofia: Prof. Marin Drinov Academic Publishing House. 143-158 (2018). MSC: 41A36 41A17 41A25 41A27 PDF BibTeX XML Cite \textit{I. Gadjev}, in: Constructive theory of functions. Proceedings of the 12th international conference, Sozopol, Bulgaria, June 11--17, 2016. Sofia: Prof. Marin Drinov Academic Publishing House. 143--158 (2018; Zbl 1445.41013) Full Text: Link OpenURL
Draganov, Borislav R.; Ivanov, Kamen G. A new characterization of weighted Peetre \(K\)-functionals. III. (English) Zbl 1445.41012 Ivanov, Kamen (ed.) et al., Constructive theory of functions. Proceedings of the 12th international conference, Sozopol, Bulgaria, June 11–17, 2016. Sofia: Prof. Marin Drinov Academic Publishing House. 99-141 (2018). MSC: 41A36 41A81 46B70 PDF BibTeX XML Cite \textit{B. R. Draganov} and \textit{K. G. Ivanov}, in: Constructive theory of functions. Proceedings of the 12th international conference, Sozopol, Bulgaria, June 11--17, 2016. Sofia: Prof. Marin Drinov Academic Publishing House. 99--141 (2018; Zbl 1445.41012) Full Text: Link OpenURL
Draganov, Borislav R. An exact strong converse inequality for the weighted simultaneous approximation by the Bernstein operator. (English) Zbl 1445.41011 Ivanov, Kamen (ed.) et al., Constructive theory of functions. Proceedings of the 12th international conference, Sozopol, Bulgaria, June 11–17, 2016. Sofia: Prof. Marin Drinov Academic Publishing House. 75-97 (2018). MSC: 41A36 41A17 41A27 41A28 PDF BibTeX XML Cite \textit{B. R. Draganov}, in: Constructive theory of functions. Proceedings of the 12th international conference, Sozopol, Bulgaria, June 11--17, 2016. Sofia: Prof. Marin Drinov Academic Publishing House. 75--97 (2018; Zbl 1445.41011) Full Text: Link OpenURL