Results 51 to 60 of about 100,077 (295)

Denseness of Numerical Radius Attaining Holomorphic Functions

Journal of Inequalities and Applications, 2009
We study the density of numerical radius attaining holomorphic functions on certain Banach spaces using the Lindenstrauss method. In particular, it is shown that if a complex Banach space X is locally uniformly convex, then the set of all numerical ...
Han Ju Lee
doaj   +2 more sources

Reverse Inequalities for the Numerical Radius of Linear Operators in Hilbert Spaces

, 2005
Some elementary inequalities providing upper bounds for the difference of the norm and the numerical radius of a bounded linear operator on Hilbert spaces under appropriate conditions are ...
Sever S. Dragomir, Dragomir, Sever S
core   +1 more source

Experience With Performing Rheocarna Therapy via the Single‐Needle Method for Treatment of Chronic Limb‐Threatening Ischemia

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi, Rie Tanaka, Reona Kawahira, Shingo Nabeta, Kouhei Naoi, Kazuhito Kitajima, Akira Wada, Tomonari Takagi, Norihiko Ohura, Akira Miyamoto   +9 more
wiley   +1 more source

Generalized Cauchy–Schwarz Inequalities and A-Numerical Radius Applications

Axioms, 2023
The purpose of this research paper is to introduce new Cauchy–Schwarz inequalities that are valid in semi-Hilbert spaces, which are generalizations of Hilbert spaces.
Najla Altwaijry, Kais Feki, Shigeru Furuichi   +2 more
doaj   +1 more source

Vector inequalities for powers of some operators in Hilbert spaces

, 2008
Vector inequalities for powers of some operators in Hilbert spaces with applications for operator norm, numerical radius, commutators and self-commutators are ...
Dragomir, Sever S, S.S. Dragomir
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

New Bounds for the Davis–Wielandt Radius via the Moore–Penrose Inverse of Bounded Linear Operators

Axioms
In this paper, we obtain some new upper bounds involving powers of the Davis–Wielandt radius of bounded linear operators with closed ranges by using the Moore–Penrose inverse.
Xiaomei Dong, Yuzhen Guo, Deyu Wu
doaj   +1 more source

Inequalities for some Functionals Associated with Bounded Linear Operators in Hilbert Spaces

, 2006
Some inequalities between the operator norm, numerical radius and functional are established. New upper bounds for the nonnegative quantity that complement some recent results of the author are given as ...
Dragomir, Sever S
core   +1 more source

Numerical simulation of bubble dispersion in turbulent Taylor-Couette flow [PDF]

, 2014
We investigate bubble dispersion in turbulent Taylor-Couette flow. The aim of this study is to describe the main mechanisms yielding preferential bubble accumulation in near-wall structures of the flow.
CLIMENT, Eric, D. Legendre, GABILLET, Céline, E. Climent, C. Gabillet, LEGENDRE, Dominique, CHOUIPPE, Agathe, A. Chouippe   +7 more
core   +1 more source

NUMERICAL RADIUS OF KRONECKER PRODUCT OF MATRICES

Journal of Applied Analysis & Computation, 2023
Summary: In this article, we present several bounds for the numerical radius of the Kronecker product of matrices to enrich our knowledge about this topic.
Sababheh, Mohammad, Moradi, Hamid Reza
openaire   +1 more source