The spectrum of unbounded operator matrices with nondiagonal domain. J. Funct. Anal. 89 (2): 291–302. MATH MathSciNetNagel, R.: The spectrum of unbounded operator matrices with non-diagonal domain. preprint (1988)R. Nagel, The spectrum of unbounded operator matrices with non-diagonal ...
3) unbounded spectral operators 无界谱算子4) spectrum of nonlinear operator 非线性算子的谱5) spectrum of a linear operator 线性算子的谱6) Generalized Spectrum of Linear Operators 线性算子的广义谱补充资料:有界线性算子 设t:x→y是从赋范空间x到y的线性算子。 如果当x∈x跑遍所有元素,||t(x)...
On the Spectrum of the Product of Closed Operators In this note we study the connection between the spectra of the products AB and BA of unbounded closed operators A and B acting in Banach spaces. Under the... Volker,Hardt,Alexei,... - 《Mathematische Nachrichten》 被引量: 69发表: 2000...
作者: D Borthwick 摘要: This chapter introduces the notion of the spectrum of an operator (possibly unbounded) on a Hilbert space. The theory of the resolvent operator is developed and used to establish basic properties of the spectrum. DOI: 10.1007/978-3-030-38002-1_4 年份: 2020 收藏...
On the negative discrete spectrum of the operator-N-aV for a class of unbounded domains in R 来自 ResearchGate 喜欢 0 阅读量: 14 作者: M. Solomyak 摘要: Presents an excerpt from the book "Passage to a Human World: How an Edifice of Error Blocks Our View of What Is Happening in ...
VN Pilipchuk,AF Vakakis - 《Journal of Vibration & Acoustics》 被引量: 29发表: 1998年 Second Order Elliptic Differential-Operator Equations with Unbounded Operator Boundary Conditions in UMD Banach Spaces In a UMD Banach space E, we consider a boundary value problem for a second order elliptic...
We establish criteria for the stability of the essential spectrum for unbounded operators acting in Banach modules. The applications cover operators acting on sections of vector fiber bundles over non-smooth manifolds or locally compact abelian groups, in particular differential operators of any order wi...
Let X and Y be the Banach spaces and T:X→Y also be a bounded linear operator. By R(T), we denote the range of T, i.e., R(T)={y∈Y:y=Tx,x∈X}. By B(X), we also denote the set of all bounded linear operators on X into itself. If X is any Banach space and T∈...
On the fine spectrum of the Cesàro operator in c0 The fine spectrum of the Cesàro operator in the sequence space c 0 is examined. Although the spectrum of the Cesàro operator in the sequence ... AM Akhmedov,F Ba?Ar - 《Mathematical Journal of Ibaraki University》 被引量: 91发表: ...
Xia's theorem about the spectrum of hyponormal operators is reproved by a simple method and it is extended to the case of unbounded hyponormal operators with bounded imaginary part and double commutingn-tuples of hyponormal operators.doi:10.1007/BF01199306Li Shaokuan...