## Found 660 Documents (Results 1–100)

100
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### General reiteration theorems for $$\mathcal{R}$$ and $$\mathcal{L}$$ classes: mixed interpolation of $$\mathcal{R}$$ and $$\mathcal{L}$$-spaces. (English)Zbl 07517576

MSC:  46B70 46E30 26A12
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MSC:  42B10
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### A complete extension of the Bernstein-Weierstrass theorem to the infinite interval $$(-\infty,+\infty)$$ via Chlodovsky polynomials. (English)Zbl 07486142

MSC:  41A36 41A10 41A25
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### The modulus of $$p$$-variation and its applications. (English)Zbl 07457086

MSC:  46E35 46B70 42A20
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### Reiteration theorem for $$\mathcal{R}$$ and $$\mathcal{L}$$-spaces with the same parameter. (English)Zbl 07451078

MSC:  46B70 46E30
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MSC:  42B37
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### Approximation properties of generalized Baskakov operators. (English)Zbl 07513621

MSC:  41A36 41A25
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### Durrmeyer type modification of $$(p, q)$$-Szász Mirakjan operators and their quantitative estimates. (English)Zbl 07473736

MSC:  41A25 41A35
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### Load frequency stability analysis of power systems with probability distribution time-varying delays. (Chinese. English summary)Zbl 07448647

MSC:  93E15 93C80 93C43

### Connections between the approximation orders of positive linear operators and their max-product counterparts. (English)Zbl 1483.41007

MSC:  41A25 41A35
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### Weighted variable exponent grand Lebesgue spaces and inequalities of approximation. (English)Zbl 07424380

MSC:  46E30 42A10
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### On the stability of the Lions-Peetre method of real interpolation with functional parameter. (English)Zbl 07420658

MSC:  46B70 46M35 46E30
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### Symmetric gradient Sobolev spaces endowed with rearrangement-invariant norms. (English)Zbl 07408025

MSC:  46E35 46E30
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### Direct, inverse, and equivalence theorems for weighted Szász-Durrmeyer-Bézier operators in Orlicz spaces. (English)Zbl 07393070

MSC:  41A35 41A17 41A27
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### A new kind of variant of the Kantorovich type modification operators introduced by D. D. Stancu. (English)Zbl 1477.41011

MSC:  41A36 26A15
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### Approximation by modified Lupaş-Stancu operators based on $$(p, q)$$-integers. (English)Zbl 07382393

MSC:  41A36 41A10 41A25
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### Weighted approximation of functions by the Szász-Mirakjan-Kantorovich operator. (English)Zbl 1471.41016

MSC:  41A81 41A17 41A36
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### The equivalence theorem for logarithmic interpolation spaces in the quasi-Banach case. (English)Zbl 1479.46087

MSC:  46M35 46B70
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### Approximation properties of combination of multivariate averages on Triebel-Lizorkin spaces. (English)Zbl 1466.42018

MSC:  42B35 41A17 46E35
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### Approximation properties of a family of integral type operators. (English)Zbl 1466.41009

MSC:  41A36 41A25
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### Modulus of smoothness and theorems concerning approximation in the space $$L^2_{q,\alpha}(\mathbb{R}_q)$$ with power weight. (English)Zbl 1467.41009

MSC:  41A36 33D15 44A20
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### A note on $$K$$-functional, modulus of smoothness, Jackson theorem and Bernstein-Nikolskii-Stechkin inequality on Damek-Ricci spaces. (English)Zbl 1464.41007

MSC:  41A25 42A38
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### On slow decay of Peetre’s $$K$$-functional. (English)Zbl 1457.41007

MSC:  41A25 41A10 46B70
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### 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

MSC:  46B70 46E30 46M35
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### Stancu type $$q$$-Bernstein operators with shifted knots. (English)Zbl 07460809

MSC:  41A10 41A25 41A36
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### Direct result for a summation-integral type modification of Szasz-Mirakjan operators. (English)Zbl 1474.41062

MSC:  41A36 41A10 41A25
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### 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).
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### 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).
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### The saturation class for linear combinations of Szász-Mirakjan operators. (English)Zbl 1457.41017

MSC:  41A36 41A40
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### New methods of stability analysis for sampled-data control systems. (Chinese. English summary)Zbl 1463.93212

MSC:  93D20 93C57

### Dwell-time based stability analysis and $$\mathcal{L}_2$$ control of LPV systems with piecewise constant parameters and delay. (English)Zbl 1454.93215

MSC:  93D05 93C43 93C05
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MSC:  41A35
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### A version of Calderón-Mityagin theorem for the class of rearrangement invariant groups. (English)Zbl 1465.46023

MSC:  46B70 46B45
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### $$A$$-statistical $$L_p$$ approximation properties of an integral variant of a general positive linear operators. (English)Zbl 1443.41014

MSC:  41A36 41A10 41A25
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### Approximation by multivariate Baskakov-Kantorovich operators in Orlicz spaces. (English)Zbl 1448.41020

MSC:  41A36 41A17
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### 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

### 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
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### Approximation by multivariate max-product Kantorovich-type operators and learning rates of least-squares regularized regression. (English)Zbl 1472.41011

MSC:  41A35 41A25 41A63
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### Approximation properties and error estimation of q-Bernstein shifted operators. (English)Zbl 07202157

MSC:  41A36 41A10 41A25
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### Some interpolation formulae for grand and small Lorentz spaces. (English)Zbl 1453.46019

MSC:  46E30 46B70 26D15
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### Approximation by a generalized class of Dunkl type Szász operators based on post quantum calculus. (English)Zbl 07459269

MSC:  41A25 41A36 33C45
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### Equivalent theorem of approximation by linear combination of weighted Baskakov-Kantorovich operators in Orlicz spaces. (English)Zbl 07459251

MSC:  41A17 41A27 41A35
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### Approximation on parametric extension of Baskakov-Durrmeyer operators on weighted spaces. (English)Zbl 07459131

MSC:  41A25 41A36 33C45
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### Reiteration of a limiting real interpolation method with broken iterated logarithmic functions. (English)Zbl 07411410

MSC:  46B70 46E30
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### Approximation of a kind of linear combination operators of Post-Widder in the Orlicz spaces. (Chinese. English summary)Zbl 1463.41040

MSC:  41A35 41A25

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MSC:  41A35
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### 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

MSC:  42C05 33C50 33C45
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### Distribution testing lower bounds via reductions from communication complexity. (English)Zbl 1440.68323

MSC:  68W20 68Q11 68Q17
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### On linear combinations of general exponential sampling series. (English)Zbl 1447.41006

MSC:  41A25 41A60 94A20
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### Weighted approximation and GBS of Chlodowsky-Szász-Kantorovich type operators. (English)Zbl 1428.41025

MSC:  41A36 41A10 41A25
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### Dunkl-gamma type operators including Appell polynomials. (English)Zbl 1462.41007

MSC:  41A25 41A36 33C45
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### On the equivalence of the $$K$$-functional and the modulus of continuity on the Morrey spaces. (English)Zbl 1440.46019

MSC:  46B70 42B35 46E35
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### Direct estimates for Stancu variant of Lupaş-Durrmeyer operators based on Polya distribution. (English)Zbl 1449.41022

MSC:  41A36 26A15
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### Equivalence of $$K$$-functionals and modulus of smoothness constructed by generalized Jacobi transform. (English)Zbl 1457.33003

MSC:  33C45 42C15
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### Direct theorems of trigonometric approximation for variable exponent Lebesgue spaces. (English)Zbl 1419.42001

MSC:  42A10 41A17
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### Delay range-and-rate dependent stability criteria for systems with interval time-varying delay via a quasi-quadratic convex framework. (English)Zbl 1418.93208

MSC:  93D05 93C15 93C05
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### Approximation by a class of $$q$$-beta operators of the second kind via the Dunkl-type generalization on weighted spaces. (English)Zbl 1416.41033

MSC:  41A36 41A25 33C45
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### Szász type operators involving Charlier polynomials of blending type. (English)Zbl 1426.41013

MSC:  41A25 41A35 26A15
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### An analog of Titchmarsh’s theorem for the $$q$$-Bessel transform. (English)Zbl 1415.33006

MSC:  33D15 47A05
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### Some approximation results on two parametric $$q$$-Stancu-beta operators. (English)Zbl 1426.41029

MSC:  41A36 41A10 41A25
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### Approximation by a sequence of operators of the Srivastava-Gupta type involving the Brenke polynomials with a certain parameter. (English)Zbl 1412.41025

MSC:  41A36 26A45 41A30
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### Approximation by bandlimited functions, generalized $$K$$-functionals and generalized moduli of smoothness. (English)Zbl 1438.41013

MSC:  41A17 41A25
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### A note on iterated spherical average on Lebesgue spaces. (English)Zbl 1458.41006

MSC:  41A17 41A63 42B30
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### On approximation by $$(p,q)$$-Meyer-König-Zeller Durrmeyer operators. (English)Zbl 1412.41019

MSC:  41A25 41A35
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### Best polynomial approximation on the triangle. (English)Zbl 1414.41018

MSC:  41A50 33C50 42C10
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### Approximation properties of Kantorovich type $$q$$-Balázs-Szabados operators. (English)Zbl 1409.41009

MSC:  41A35 41A25 41A36
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### Approximation by $$(p, q)$$-analogue of Balázs-Szabados operators. (English)Zbl 07465573

MSC:  41A25 41A36 41A35
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### Weighted approximation by Kanotrovich type modification of Meyer-König and Zeller operator. (English)Zbl 1474.41080

MSC:  41A81 41A25 41A36
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### Strong converse inequalities for the weighted multivariate Bernstein-Durrmeyer operator on the simplex via multipliers. (English)Zbl 1474.41031

MSC:  41A27 41A36
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### Approximation of modified Jakimovski-Leviatan-beta type operators. (English)Zbl 1463.41060

MSC:  41A36 41A25
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### Approximation properties of Kantorovich type modifications of $$(p, q)$$-Meyer-König-Zeller operators. (English)Zbl 1463.41031

MSC:  41A25 41A35
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### 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).
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### 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
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### 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).
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