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Linear extension operators of bounded norms
Journal of Mathematical Analysis and Applications, 2018Abstract Dugundji spaces were introduced by Pelczynski as compact Hausdorff spaces X such that every embedding of X into a Tychonoff cube [ 0 , 1 ] A admits a linear extension operator u : C ( X ) → C ( [ 0 , 1 ] A ) such that ‖ u ‖ = 1 and u ( 1 X ) = 1 [ 0 , 1 ] A
Dmitri Shakhmatov +2 more
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On Certain Classes of Bounded Linear Operators
Canadian Mathematical Bulletin, 1970Let T—c be a Fredholm operator, where T is a bounded linear operator on a complex Banach space and c is a scalar, the set of all such scalars is called the Φ-set of T [2] and was studied by many authors. In this connection, the purpose of the present paper is to investigate some classes Φ(V) of all such operators for any subset V of the complex plane ...
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Bounded and Unbounded Linear Operators
1987Let H be a complex inner product space and let L(H) be the set of all bounded linear operators on H. In this chapter we present some basic facts about the set L(H) as well as about the set of unbounded operators on H. We also present some classes of operators whose structure is better understood, among which we mention the class of hermitian, unitary ...
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
exaly
Multidisciplinary standards of care and recent progress in pancreatic ductal adenocarcinoma
Ca-A Cancer Journal for Clinicians, 2020Aaron J Grossberg +2 more
exaly