Výsledky vyhľadávania - "K-functional"

Old and new on the Peetre K-functional and its relations to real interpolation theory, quasi-monotone functions and wavelets

Autori: Dalmo, Rune Persson, Lars-Erik Samko, Natasha

Zdroj: Analysis and Mathematical Physics. 15(1)

Predmety: Functions of real variables, Quasi-monotone function, Indices, K-functional, Real interpolation theory, Wavelets, Engineering mathematics

Popis súboru: electronic

Prístupová URL adresa: https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-545748
https://doi.org/10.1007/s13324-024-00998-9

A study of (σ, μ)-Stancu-Schurer as a new generalization and approximations

Autori: Nadeem Rao Mohammad Farid Nand Kishor Jha

Zdroj: Journal of Inequalities and Applications, Vol 2025, Iss 1, Pp 1-18 (2025)

Predmety: Mathematical operators, Approximation algorithms, Rate of convergence, Order of approximation, Modulus of continuity, Peetre‘s K-functional, Mathematics, QA1-939

Popis súboru: electronic resource

Relation: https://doaj.org/toc/1029-242X

Prístupová URL adresa: https://doaj.org/article/92317adb91f14a9fb3c95c13bfa36c62

Higher order approximation of functions by modified Goodman-Sharma operators

Autori: Rumen Uluchev Ivan Gadjev Parvan Parvanov

Zdroj: Volume: 7, Issue: 4180-195
Constructive Mathematical Analysis

Predmety: Bernstein-Durrmeyer operator, Goodman-Sharma operator, Direct theorem, Strong converse theorem, K-functional, Mathematics - Classical Analysis and ODEs, Yaklaşım Teorisi ve Asimptotik Yöntemler, Classical Analysis and ODEs (math.CA), FOS: Mathematics, 41A35, 41A10, 41A25, 41A27, 41A17, 0101 mathematics, 01 natural sciences, Approximation Theory and Asymptotic Methods

Popis súboru: application/pdf

Prístupová URL adresa: http://arxiv.org/abs/2410.06908
https://dergipark.org.tr/tr/pub/cma/issue/88273/1563047

Max-Product Sampling Kantorovich Operators: Quantitative Estimates in Functional Spaces

Autori: Boccali L. Costarelli D. Vinti G.

Zdroj: Numerical Functional Analysis and Optimization. 45:667-685

Predmety: modulus of smoothness, Max-product sampling Kantorovich operators, Lipschitz classes, quantitative estimates, Orlicz spaces, K-functional

Prístupová URL adresa: https://hdl.handle.net/2158/1419937
https://doi.org/10.1080/01630563.2024.2405475

Convergence of \(\lambda\)-Bernstein - Kantorovich operators in the \(L_p\)- norm

Autori: Purshottam N. Agrawal Behar Baxhaku

Zdroj: Journal of Numerical Analysis and Approximation Theory, Vol 53, Iss 1 (2024)

Predmety: Bernstein-Kantorovich type operators, Peetre's \(K\)-functional, QA1-939, integral modulus of smoothness, 0101 mathematics, 01 natural sciences, Mathematics

Prístupová URL adresa: https://doaj.org/article/78441b29637a4e47803597c7461a1e6b

Convergence by Class of Kantorovich-Type q-Szász Operators and Comprehensive Results

Autori: Md. Nasiruzzaman Mohammad Farid Nadeem Rao

Zdroj: Mathematics, Vol 13, Iss 22, p 3586 (2025)

Predmety: Szász–Mirakjan operators, q-integrals, Korovkin’s theorem, modulus of continuity, Peetre’s K-functional, approximation algorithms, Mathematics, QA1-939

Popis súboru: electronic resource

Relation: https://www.mdpi.com/2227-7390/13/22/3586; https://doaj.org/toc/2227-7390

Prístupová URL adresa: https://doaj.org/article/7ac2e408a9df47a7a50ca09b44f54dea

Approximation properties by Schurer type q-Kantorovich–Stancu shifted knots operators: Approximation properties by Schurer type \(q\)-Kantorovich-Stancu shifted knots operators

Autori: Abdullah Alotaibi

Zdroj: Journal of Inequalities and Applications, Vol 2024, Iss 1, Pp 1-17 (2024)

Predmety: Peetre's K-functional, Lipschitz spaces, Continuity and related questions (modulus of continuity, semicontinuity, discontinuities, etc.) for real functions in one variable, \(q\)-integers, Approximation by positive operators, Peetre's \(K\)-functional, Rate of convergence, degree of approximation, q-integers, Modulus of continuity, Korovkin's theorem, modulus of continuity, QA1-939, Kantorovich operators, Stancu operators, Mathematics

Popis súboru: application/xml

Prístupová URL adresa: https://doaj.org/article/7a8b5a87c65e44bca46f35764eed72c5

A generalized version of Holmstedt’s formula for the $K$-functional

Autori: Ahmed, Irshaad Fiorenza, Alberto Gogatishvili, Amiran

Zdroj: Colloquium Mathematicum. 176:77-85

Predmety: Mathematics - Functional Analysis, 46B70, FOS: Mathematics, Holmstedt's formula, K-functional, K-interpolation spaces, Functional Analysis (math.FA)

Prístupová URL adresa: http://arxiv.org/abs/2407.01043
https://hdl.handle.net/11588/990690
https://hdl.handle.net/11104/0357663
https://hdl.handle.net/11588/990690
https://doi.org/10.4064/cm9388-7-2024

Approximation by the modified $ \lambda $-Bernstein-polynomial in terms of basis function

Autori: Mohammad Ayman-Mursaleen Md. Nasiruzzaman Nadeem Rao a ďalší

Zdroj: AIMS Mathematics, Vol 9, Iss 2, Pp 4409-4426 (2024)

Predmety: $ \lambda $-bernstein-polynomial, shifted knots, lipschitz maximal functions, modulus of continuity, QA1-939, bernstein-polynomial, peetre's $ k $-functional, bézier basis function, Mathematics

Prístupová URL adresa: https://doaj.org/article/a59eaed3a9ec41bba1f2a0445cfb17e8

Parametric generalization of the modified Bernstein-Kantorovich operators

Autori: Kadir Kanat Melek Sofyalıoğlu Selin Erdal

Zdroj: Volume: 73, Issue: 2460-473
Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics

Predmety: Yaklaşım Teorisi ve Asimptotik Yöntemler, Bernstein-Kantorovich operators, Peetre-K functional, modulus of continuity, Lipschitz class, Approximation Theory and Asymptotic Methods

Popis súboru: application/pdf

Prístupová URL adresa: https://dergipark.org.tr/tr/pub/cfsuasmas/issue/84755/1338789

The rate of convergence of bounded linear processes on spaces of continuous functions

Autori: Gonska, Heinz H.

Zdroj: Journal of Numerical Analysis and Approximation Theory, Vol 52, Iss 2 (2023)

Predmety: quantitative Korovkin-type theorems, bounded linear operators, Mathematik, multivariate modulus of continuity, QA1-939, 0101 mathematics, compact metric spaces, K-functional, 01 natural sciences, positive linear operators, Mathematics

Prístupová URL adresa: https://doaj.org/article/b7041cb86e1a46649dca5349a1c610f5
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85180855403
https://doi.org/10.33993/jnaat522-1326

Approximation Properties of a Fractional Integral-Type Szász–Kantorovich–Stancu–Schurer Operator via Charlier Polynomials

Autori: Nadeem Rao Mohammad Farid Nand Kishor Jha

Zdroj: Mathematics, Vol 13, Iss 18, p 3039 (2025)

Predmety: rate of convergence, order of approximation, mathematical operators, modulus of continuity, approximation algorithms, Peetre’s K-functional, Mathematics, QA1-939

Popis súboru: electronic resource

Relation: https://www.mdpi.com/2227-7390/13/18/3039; https://doaj.org/toc/2227-7390

Prístupová URL adresa: https://doaj.org/article/40580f67580f4b30a07fa06c98410792

Improved Admissibility Criteria for Takagi–Sugeno Fuzzy Singular Systems With Time-Varying Delay

Autori: Yibo Wang Changchun Hua Peng Shi

Zdroj: IEEE Transactions on Fuzzy Systems. 31:2966-2974

Predmety: TFS systems, Finsler's Lemma, 4008 Electrical engineering, Institute for Sustainable Industries and Liveable Cities, 0202 electrical engineering, electronic engineering, information engineering, reciprocally convex inequality, Lyapunov–Krasovskii functional, 02 engineering and technology, Takagi–Sugeno fuzzy singular systems, L–K functional

A Generalized Reciprocally Convex Inequality on Stability and Stabilization for T–S Fuzzy Systems With Time-Varying Delay

Autori: Yibo Wang Changchun Hua PooGyeon Park a ďalší

Prispievatelia: Yibo Wang Changchun Hua PooGyeon Park a ďalší

Zdroj: IEEE Transactions on Fuzzy Systems. 31:722-733

Predmety: KRASOVSKII FUNCTIONAL METHOD, MODEL TRANSFORMATION, Takagi-Sugeno (T-S) fuzzy system, 0202 electrical engineering, electronic engineering, information engineering, reciprocally convex inequality (RCI), 02 engineering and technology, LINEAR-SYSTEMS, stability, Asymmetric Lyapunov-Krasovskii (L-K) functional

Approximation properties of Stancu type Szász-Mirakjan operators

Autori: Bo-Yong Lian Qing-Bo Cai

Zdroj: AIMS Mathematics, Vol 8, Iss 9, Pp 21769-21780 (2023)

Predmety: szász-mirakjan operators, modulus of continuity, QA1-939, k-functional, Mathematics, voronovskaya-type asymptotic formula, rate of convergence

Prístupová URL adresa: https://doaj.org/article/f31f4cd5cc7447148e00b41102812dee

The learning performance of the weak rescaled pure greedy algorithms

Autori: Qin Guo Xianghua Liu Peixin Ye

Zdroj: Journal of Inequalities and Applications, Vol 2024, Iss 1, Pp 1-14 (2024)

Predmety: Least squares regression, Rescaled pure greedy algorithm, Weakness sequence, K-functional, Learning rate, Mathematics, QA1-939

Popis súboru: electronic resource

Relation: https://doaj.org/toc/1029-242X

Prístupová URL adresa: https://doaj.org/article/28756f963e1b45c3b8e031b35ad7acb3

Approximation by the modified λ-Bernstein-polynomial in terms of basis function

Autori: Mohammad Ayman-Mursaleen Md. Nasiruzzaman Nadeem Rao a ďalší

Zdroj: AIMS Mathematics, Vol 9, Iss 2, Pp 4409-4426 (2024)

Predmety: bernstein-polynomial, $ \lambda $-bernstein-polynomial, bézier basis function, shifted knots, modulus of continuity, lipschitz maximal functions, peetre's $ k $-functional, Mathematics, QA1-939

Popis súboru: electronic resource

Relation: https://doaj.org/toc/2473-6988

Prístupová URL adresa: https://doaj.org/article/a59eaed3a9ec41bba1f2a0445cfb17e8

A fast converging sampling operator

Autori: Borislav Draganov

Zdroj: Volume: 5, Issue: 4 190-201
Constructive Mathematical Analysis

Predmety: Matematik, Sampling operator, sampling series, weighted approximation, direct estimate, weak converse estimate, modulus of smoothness, $K$-functional, 0101 mathematics, 01 natural sciences, Mathematical Sciences

Popis súboru: application/pdf

Prístupová URL adresa: https://dergipark.org.tr/tr/pub/cma/issue/73315/1172005

Exponential approximation in variable exponent Lebesgue spaces on the real line

Autori: Ramazan Akgün Fen Edebiyat Fakültesi orcid:0000-0001-6247-8518

Prispievatelia: Ramazan Akgün Fen Edebiyat Fakültesi orcid:0000-0001-6247-8518

Zdroj: Volume: 5, Issue: 4 214-237
Constructive Mathematical Analysis

Predmety: Matematik, One Sided Steklov Operator, Inverse Theorem, Direct Theorem, Variable Exponent Lebesgue Space, 01 natural sciences, Mathematical Sciences, Functional Analysis (math.FA), Mathematics - Functional Analysis, Variable exponent Lebesgue space, One sided Steklovoperator, Integral functions of finite degree, Best approximation, Directtheorem, Inverse theorem, Modulus of smoothness, Marchaud inequality, K-functional, Marchaud Inequality, Mathematics - Classical Analysis and ODEs, Integral Functions of Finite Degree, Classical Analysis and ODEs (math.CA), FOS: Mathematics, Best Approximation, 0101 mathematics, Modulus of Smoothness

Popis súboru: application/pdf

Prístupová URL adresa: http://arxiv.org/abs/2109.02083
https://hdl.handle.net/20.500.12462/13836
https://dergipark.org.tr/tr/pub/cma/issue/73315/1167459

On Kantorovich variant of Brass-Stancu operators

Autori: Bodur Murat Bostancı Tuğba Başcanbaz-Tunca Gülen

Zdroj: Demonstratio Mathematica, Vol 57, Iss 1, Pp pp. 241-251 (2024)

Predmety: brass-stancu-kantorovich operators, lp-convergence, averaged modulus of smoothness, k-functional, variation detracting property, 41a36, 41a25, 26a45, Mathematics, QA1-939

Popis súboru: electronic resource

Relation: https://doaj.org/toc/2391-4661

Prístupová URL adresa: https://doaj.org/article/32b4f42ce6c8446ab9f093a69b0f1245