## Found 2,731 Documents (Results 1–100)

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### Stability analysis and memetic computation using differential evolution for in-host HIV model. (English)Zbl 07506492

MSC:  92C32 41A17 90C20
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### Sharp Bernstein inequalities for polynomials on a real Hilbert space. (English)Zbl 07499209

MSC:  41A17 26D05
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### Bernstein-Szegő inequality for trigonometric polynomials in $$L_p , 0 \leq p \leq \infty ,$$ with the classical value of the best constant. (English)Zbl 07480983

MSC:  41-XX 42-XX 41A17
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### Integrability of the Fourier-Jacobi transform of functions satisfying Lipschitz and Dini-Lipschitz-type estimates. (English)Zbl 07472685

MSC:  33C45 41A17
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### Polynomial inequalities in Lebesgue spaces with variable exponents on the sphere. (English)Zbl 07471780

MSC:  41A17 42B20 46E30
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### Bernstein-Markov property for compact sets in $$\mathbb{C}^d$$. (English)Zbl 1483.32001

MSC:  32A08 41A17 32E30
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### Strong converse inequality for linear combinations of Szász-Mirakjan operators. (English)Zbl 07436518

MSC:  41A17 41A27
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### Strong and pure fixed point properties of mappings on normed spaces. (English)Zbl 07500426

MSC:  46A32 46M05 41A17
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### On the norms of Boman-Shapiro difference operators. (English. Russian original)Zbl 1482.41004

Proc. Steklov Inst. Math. 315, Suppl. 1, S55-S66 (2021); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 26, No. 4, 64-75 (2020).
MSC:  41A17 41A44 47B39
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### Achieving more precise bounds based on double and triple integral as proposed by generalized proportional fractional operators in the Hilfer sense. (English)Zbl 1481.26004

MSC:  26A33 26D10 41A17
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### Optimal polynomial prediction measures and extremal polynomial growth. (English)Zbl 07458659

MSC:  41A17 30A10 62K05
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### Inequalities for the first and second derivatives of algebraic polynomials on an ellipse. (English)Zbl 07452918

MSC:  41A17 30A10 30C10
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### Sampling by averages and average splines on Dirichlet spaces and on combinatorial graphs. (English)Zbl 1481.94074

Hirn, Matthew (ed.) et al., Excursions in harmonic analysis, Volume 6. In honor of John Benedetto’s 80th birthday. Cham: Birkhäuser. Appl. Numer. Harmon. Anal., 243-268 (2021).
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### The best constant for a kind of Picone inequality. (Chinese. English summary)Zbl 07448661

MSC:  41A17 26D10
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### On a new generalization of some Hilbert-type inequalities. (English)Zbl 1475.26028

MSC:  26D15 41A17
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MSC:  41A17
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### Inequalities between best polynomial approximants and smoothness characteristics of functions in $$L_2$$. (English. Russian original)Zbl 1482.41007

Math. Notes 110, No. 3, 432-439 (2021); translation from Mat. Zametki 110, No. 3, 450-458 (2021).
MSC:  41A17 42A05
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### Refinement of relations between mixed moduli of smoothness in the metrics of $$L_p$$ and $$L_\infty$$. (English. Russian original)Zbl 07431855

Math. Notes 110, No. 3, 347-362 (2021); translation from Mat. Zametki 110, No. 3, 368-385 (2021).
MSC:  46E30 41A17 26A33
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### Approximation characteristics of the Nikol’sky-Besov-type classes of periodic single- and multivariable functions in the $$B_{1,1}$$ space. (English. Ukrainian original)Zbl 07427292

J. Math. Sci., New York 259, No. 1, 75-87 (2021) and Ukr. Mat. Visn. 18, No. 3, 389-405 (2021).
MSC:  41A17 42A10 42B15
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### Equivalence of $$K$$-functionals and modulus of smoothness for Laguerre type operator. (English)Zbl 07425531

MSC:  43A62 43A80 41A17
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### On an operator preserving inequalities between polynomials. (English)Zbl 07424452

MSC:  30-XX 41A17
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### Boundedness of iterated spherical average on $$\alpha$$-modulation spaces. (English)Zbl 1481.42032

MSC:  42B35 42B15 41A17
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### Markov-type inequalities and extreme zeros of orthogonal polynomials. (English)Zbl 07416634

MSC:  41A17 33C45
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### On the multiplicity of the zeros of polynomials with constrained coefficients. (English)Zbl 07404635

Rassias, Themistocles M. (ed.), Approximation theory and analytic inequalities. Cham: Springer. 165-177 (2021).
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### Hardy-Littlewood and Ulyanov inequalities. (English)Zbl 07403469

Memoirs of the American Mathematical Society 1325. Providence, RI: American Mathematical Society (AMS) (ISBN 978-1-4704-4758-8/pbk; 978-1-4704-6628-2/ebook). viii, 118 p. (2021).
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### Equivalence of $$K$$-functionals and modulus of smoothness for Jacobi-Dunkl transform. (English)Zbl 07403036

MSC:  42A38 41A17 44A15
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### Jackson-type inequalities and widths of functional classes in the Musielak-Orlicz type spaces. (English)Zbl 1477.41004

MSC:  41A17 42A32
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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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### On a discrete transform of homogeneous decomposition spaces. (English)Zbl 1471.42048

MSC:  42B35 42C15 41A17
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### Atomic decomposition for mixed Morrey spaces. (English)Zbl 1471.42053

MSC:  42B35 41A17 46E30
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MSC:  41A17
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### Sharp inequalities between the best root-mean-square approximations of analytic functions in the disk and some smoothness characteristics in the Bergman space. (English. Russian original)Zbl 1477.41006

Math. Notes 110, No. 2, 248-260 (2021); translation from Mat. Zametki 110, No. 2, 266-281 (2021).
MSC:  41A17 30E10 41A25
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### Mean convergence of entire interpolations in weighted space. (English)Zbl 1471.41003

MSC:  41A05 30E05 41A17
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### On the optimal constants in the two-sided Stechkin inequalities. (English)Zbl 1473.41002

MSC:  41A17 41A44 46E30
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### On an operator preserving polynomial inequalities. (English)Zbl 1468.26015

MSC:  26D10 41A17
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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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### Some Landau-Kolmogorov type inequalities for differential operators generated by polynomials. (English)Zbl 07377590

MSC:  26D10 41A17
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### An extension of Bernstein inequality. (English)Zbl 1476.41009

MSC:  41A17 42B10
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### Sharp $$L_p$$ Bernstein type inequality for cuspidal domains in $$\mathbb{R}^d$$. (English)Zbl 1468.41006

MSC:  41A17 41A63
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### “Smooth rigidity” and Remez-type inequalities. (English)Zbl 1466.41007

MSC:  41A17 41A63
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### Lupaş-type inequality and applications to Markov-type inequalities in weighted Sobolev spaces. (English)Zbl 1471.33007

MSC:  33C45 41A17 26C99
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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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### Multiplicator type operators and approximation of periodic functions of one variable by trigonometric polynomials. (English. Russian original)Zbl 1464.42001

Sb. Math. 212, No. 2, 234-264 (2021); translation from Mat. Sb. 212, No. 2, (2021).
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### Sharp inequalities of Jackson-Stechkin type and widths of classes of functions in $$L_2$$. (Russian. English translation)Zbl 1474.42012

Ufim. Mat. Zh. 13, No. 1, 56-68 (2021); translation in Ufa Math. J. 13, No. 1, 56-67 (2021).
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### Sharp estimates for mean square approximations of classes of periodic convolutions by spaces of shifts. (English. Russian original)Zbl 1464.41003

St. Petersbg. Math. J. 32, No. 2, 349-369 (2021); translation from Algebra Anal. 32, No. 2, 201-228 (2020).
MSC:  41A17
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### Classes of convolutions with a singular family of kernels: sharp constants for approximation by spaces of shifts. (English. Russian original)Zbl 1462.41005

St. Petersbg. Math. J. 32, No. 2, 233-260 (2021); translation from Algebra Anal. 32, No. 2, 45-84 (2020).
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MSC:  41A17
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MSC:  41A17
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### On Landau-type approximation operators. (English)Zbl 1464.41008

MSC:  41A36 41A25 41A17
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### A discrete weighted Markov-Bernstein inequality for sequences and polynomials. (English)Zbl 1455.41003

MSC:  41A17 33C45
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### Approximation of common fixed points for a class of contraction mappings in a metric space. (English)Zbl 07479388

MSC:  41A17 47H09
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### On a Bernstein type operator. (English)Zbl 07417580

MSC:  41A36 41A17 41A10

### Markov-Bernstein-Nikol’skii constants for polynomials in $$L^p$$-space with the Gegenbauer weight. (Russian. English summary)Zbl 1482.41006

MSC:  41A17 42A05
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### Trigonometric fractional approximation of stochastic processes. (English)Zbl 1470.60194

MSC:  60H25 26A33 41A17

### Some applications of the boundary Schwarz lemma for polynomials with restricted zeros. (English)Zbl 1462.26018

MSC:  26D10 41A17 30C15
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### On a refinement of Turán’s inequality. (English)Zbl 1460.26024

MSC:  26D10 41A17 30C15
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