Results 11 to 20 of about 276,144 (58)
Upper Bounds for the Euclidean Operator Radius and Applications [PDF]
, 2006 The main aim of the present paper is to establish various sharp upper bounds for the Euclidean operator radius of an n−tuple of bounded linear operators on a Hilbert space.
Dragomir, Sever S
core +6 more sources
Some Inequalities for the Euclidean Operator Radius of Two Operators in Hilbert Spaces [PDF]
, 2006 Some sharp bounds for the Euclidean operator radius of two bounded linear operators in Hilbert spaces are given. Their connection with Kittaneh’s recent results which provide sharp upper and lower bounds for the numerical radius of linear operators ...
Dragomir, Sever S
core +7 more sources
Norm and Numerical Radius Inequalities for Two Linear Operators in Hilbert Spaces [PDF]
, 2008 Some inequalities for the norm and numerical radius of two bounded linear operators in Hilbert spaces are ...
Dragomir, Sever S
core +5 more sources
Structural Control and Health Monitoring, Volume 2023, Issue 1, 2023., 2023 Considering that the effect of solar radiation on the super‐high arch dam temperature field remains poorly studied, the calculation accuracy of dam temperature deformation is unable to be guaranteed accordingly. To address the issue, the solar radiation effect is adequately taken into consideration by proposing a practical calculation method based on ...
Chenfei Shao +7 more
wiley +1 more source
Role of A‐Site Composition in Charge Transport in Lead Iodide Perovskites
Advanced Energy and Sustainability Research, Volume 3, Issue 11, November 2022., 2022 The electronic properties of metal halide perovskites are measured with time‐resolved microwave conductivity, as a function of A‐site composition. It is found that a small percentage of Cs leads to a larger carrier mobility and lifetime and that compositions with a tolerance factor close to 0.9 generally show lower performance than those closer to 0.8 ...
Min Ji Hong, John G. Labram
wiley +1 more source
Development and Application of Well‐Test Model after Injection Biological Nanomaterials
Geofluids, Volume 2022, Issue 1, 2022., 2022 Nanomaterials are gradually shining in the petroleum industry and have made great achievements in EOR, pipeline coating, fracturing, and other aspects. In practical application, they have the advantages of long validity period and more environmental friendliness.
Qing Feng +9 more
wiley +1 more source
Dynamical Characterization of the Loop Current Attractor
Geophysical Research Letters, Volume 48, Issue 24, 28 December 2021., 2021 Abstract The Gulf of Mexico circulation is modulated by a mesoscale current, the Loop Current (LC), and large anticyclonic eddies that detach from it. The LC dynamics are recurrent, and its evolution is in and from a few preferential states. This observation points to the existence of a low‐dimensional dynamical attractor. Building upon advancements in
G. Liu, F. Falasca, A. Bracco
wiley +1 more source
Global Venus‐Solar Wind Coupling and Oxygen Ion Escape
Geophysical Research Letters, Volume 48, Issue 3, 16 February 2021., 2021 Abstract The present‐day Venusian atmosphere is dry, yet, in its earlier history a significant amount of water evidently existed. One important water loss process comes from the energy and momentum transfer from the solar wind to the atmospheric particles.
M. Persson +7 more
wiley +1 more source
Some Inequalities of the Grüss Type for the Numerical Radius of Bounded Linear Operators in Hilbert Spaces [PDF]
, 2008 Some inequalities of the Grüss Type type for the numerical radius of bounded linear operators in Hilbert spaces are ...
Dragomir, Sever S
core +5 more sources
Norm and Numerical Radius Inequalities for a Product of Two Linear Operators in Hilbert Spaces [PDF]
, 2006 The main aim of the present paper is to establish some norm and numerical radius inequalities for the composite operator BA under suitable assumptions for the transform Cα ,β (T) := (T∗ −α I)(β I−T) , where α ,β ∈ C and T ∈ B(H), of the operators ...
S. S. Dragomir +2 more
core +2 more sources