Results 51 to 60 of about 123,416 (162)

New proofs on two recent inequalities for unitarily invariant norms

open access: yesJournal of Inequalities and Applications, 2020
In this short note, we provide alternative proofs for several recent results due to Audenaert (Oper. Matrices 9:475–479, 2015) and Zou (J. Math. Inequal. 10:1119–1122, 2016; Linear Algebra Appl. 552:154–162, 2019).
Junjian Yang, Linzhang Lu
doaj   +1 more source

Invariant Mean Electrical Axis in Electrocardiogram

open access: yesComputing in Cardiology Conference (CinC), 2018
The mean electrical axis (MEA) is is an important measurement in clinical assessment. However, currently there is no agreement on a standardized calculation of the MEA. In order to standardize the MEA calculation, the following issues need to be addressed: 1) The net direction or net potential in the measurement of MEA needs to be defined.
Kjell Le   +4 more
openaire   +1 more source

Surfaces in E3 invariant under a one parameter group of isometries of E3

open access: yesAnais da Academia Brasileira de Ciências, 2000
We develop a convenient surface theory in E³ in order to apply it to the class of the surfaces invariant under a one-parameter group of isometries of E³.
ROUSSOS IOANNIS M.
doaj  

Bi-Lipschitz Mappings and Quasinearly Subharmonic Functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2010
After considering a variant of the generalized mean value inequality of quasinearly subharmonic functions, we consider certain invariance properties of quasinearly subharmonic functions.
Oleksiy Dovgoshey, Juhani Riihentaus
doaj   +1 more source

Design of Differential Loudspeaker Line Array for Steerable Frequency-Invariant Beamforming

open access: yesSensors
Differential beamforming has attracted much research since it can utilize an array with a small aperture size to form frequency-invariant beampatterns and achieve high directional gains.
Yankai Zhang, Qian Xiang, Qiaoxi Zhu
doaj   +1 more source

Invariant-Based Channel Attention for Robust Visible-Infrared Fusion Under Sensor Degradation

open access: yesIEEE Access
The fusion of visible and infrared imagery is essential for robust perception under adverse conditions, yet conventional fusion networks suffer significant performance degradation when sensors fail asynchronously.
Konstantinos Palapanidis   +4 more
doaj   +1 more source

Exposed points of left invariant means [PDF]

open access: yesPacific Journal of Mathematics, 1986
Let S be a left amenable semigroup and let ML(S) be the set of left invariant means on the Banach space of all bounded functions on S with the usual sup-norm. The author proves the following results concerning exposed points of ML(S): (1) ML(S) has exposed points iff S has finite left ideals.
openaire   +3 more sources

On constant higher order mean curvature hypersurfaces in Hn×R ${\mathbb{H}}^{n}{\times}\mathbb{R}$

open access: yesAdvanced Nonlinear Studies
We classify hypersurfaces with rotational symmetry and positive constant r-th mean curvature in Hn×R ${\mathbb{H}}^{n}{\times}\mathbb{R}$ . Specific constant higher order mean curvature hypersurfaces invariant under hyperbolic translation are also ...
Nelli Barbara   +2 more
doaj   +1 more source

Willmore-Like Tori in Killing Submersions

open access: yesAdvances in Mathematical Physics, 2018
The first variation formula and Euler-Lagrange equations for Willmore-like surfaces in Riemannian 3-spaces with potential are computed and, then, applied to the study of invariant Willmore-like tori with invariant potential in the total space of a ...
Manuel Barros   +2 more
doaj   +1 more source

Ideal Convergent Sequence Spaces with Respect to Invariant Mean and a Musielak-Orlicz Function Over n-Normed Spaces

open access: yesInternational Journal of Analysis and Applications, 2018
In the present paper we defined I-convergent sequence spaces with respect to invariant mean and a Musielak-Orlicz function M = (M_k) over n-normed spaces.
Sunil K. Sharma
doaj   +2 more sources

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