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OPERATORS: 作品数：904被引量：849H指数：11; 导出分析报告; 相关领域：理学更多>>; 相关作者：郭顺生曹飞龙杨茂周定轩熊静宜更多>>; 相关机构：河北师范大学北京师范大学宁夏大学北京邮电大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家教育部博士点基金国家重点基础研究发展计划福建省自然科学基金更多>>

The Well-Posed Operators with Their Spectra in L<sup>p</sup>w</sub>-Spaces: 《Advances in Pure Mathematics》2023年第6期347-368,共22页Sobhy El-Sayed Ibrahim; In this paper, we have considered the general ordinary quasi-differential operators generated by a general quasi-differential expression τ_p,q in L^pw-spaces of order n with complex coeffici...; 关键词：Quasi-Differential Expressions Regular and Singular Endpoints Minimal and Maximal Operators Regularly Solvable Operators Well-Posed Operators Deficiency Indices

A Growth Behavior of SzegöType Operators: 《Advances in Pure Mathematics》2020年第9期492-500,共9页Jongho Yang; We define new integral operators on the Haydy space similar to Szegö projection. We show that t...; 关键词：Szegö Projection Hausdorff-Young Theorem Coeffcient Multiplier Stein Interpolation Theorem

Approximation by Complex Meyer-Konig and Zeller Operators: 《Advances in Pure Mathematics》2020年第1期1-11,共11页Qiulan Qi Jianshuo Ma; NSF of China (11571089, 11871191) ; NSF of Hebei Province (2012205028; ZD2019053); Science foundation of Hebei Normal University; The Meyer-König and Zeller operator is one of the most challenging operators. Sometimes the study of its properties will rely on the weighted approximation by Baskakov operator. In this paper, this relation is ex...; 关键词：Complex Meyer-Konig and Zeller Operators Complex Baskakov Operators Voronovskaja Type Result Analytic Function

Some Properties of First Order Differential Operators: 《Advances in Pure Mathematics》2019年第11期934-943,共10页Servais Cyr Gatse; We study some properties of first order differential operators from an algebraic viewpoint. We show this last can be decomposed in sum of an element of a module and a derivation. From a geometric viewpoint, we give so...; 关键词：COMMUTATIVE ALGEBRA DIFFERENTIAL OPERATORS MODULE of DIFFERENTIALS

Space of Operators and Property (MB): 《Advances in Pure Mathematics》2016年第13期948-953,共6页Manijeh Esfahani Bahreini; In this paper, a new class of Banach spaces, termed as Banach spaces with property (MB), will be introduced. It is stated that a space X has property (MB) if every V -subset of X* is an L-subset of X* . We describe th...; 关键词：L-Sets V -Sets Completely Continuous Operators Unconditionally Converging Operators

On α-Weyl Operators: 《Advances in Pure Mathematics》2016年第3期138-143,共6页Slaviša V. Djordjević Fernando Hernández-Díaz; The purpose of this article is to present Schechter’s manner to introduce α-Wayl operators and compare this definition with another one given by Yadav and Arora. Moreover, we introduce generalized Weyl operator in t...; 关键词：Fredholm Operators α-Closed Subspaces α-Weyl Operators

Analytic Theory of Finite Asymptotic Expansions in the Real Domain. Part II-A: The Factorizational Theory for Chebyshev Asymptotic Scales被引量：2: 《Advances in Pure Mathematics》2015年第8期454-480,共27页Antonio Granata; This paper, divided into three parts (Part II-A, Part II-B and Part II-C), contains the detailed factorizational theory of asymptotic expansions of type (?)?, , , where the asymptotic scale?, , is assumed to be an ext...; 关键词：ASYMPTOTIC EXPANSIONS FORMAL Differentiation of ASYMPTOTIC EXPANSIONS FACTORIZATIONS of Ordinary Differential OPERATORS CHEBYSHEV ASYMPTOTIC Scales

Analytic Theory of Finite Asymptotic Expansions in the Real Domain. Part II-C: Constructive Algorithms for Canonical Factorizations and a Special Class of Asymptotic Scales: 《Advances in Pure Mathematics》2015年第8期503-526,共24页Antonio Granata; This part II-C of our work completes the factorizational theory of asymptotic expansions in the real domain. Here we present two algorithms for constructing canonical factorizations of a disconjugate operator starting...; 关键词：ASYMPTOTIC EXPANSIONS CANONICAL FACTORIZATIONS of Disconjugate OPERATORS Algorithms for CANONICAL FACTORIZATIONS CHEBYSHEV ASYMPTOTIC Scales

The Factorizational Theory of Finite Asymptotic Expansions in the Real Domain: A Survey of the Main Results被引量：4: 《Advances in Pure Mathematics》2015年第1期1-20,共20页Antonio Granata; After studying finite asymptotic expansions in real powers, we have developed a general theory for expansions of type (*) ,x → x0 where the ordered n-tuple forms an asymptotic scale at x0 , i.e. as x → x0, 1 ≤ i ≤...; 关键词：ASYMPTOTIC EXPANSIONS FORMAL Differentiation of ASYMPTOTIC EXPANSIONS FACTORIZATIONS of Ordinary Differential OPERATORS CHEBYSHEV ASYMPTOTIC Scales

On Invertibility of Functional Operators with Shift in Weighted Holder Spaces: 《Advances in Pure Mathematics》2014年第11期595-600,共6页Anna Tarasenko Oleksandr Karelin; In this paper, we consider functional operators with shift in weighted H?lder spaces. We present the main idea and the scheme of proof of the conditions of invertibility for these operators. As an application, we prop...; 关键词：Functional Operator with Shift Holder Space Conditions of Invertibility Renewable Resources

OPERATORS