Results 81 to 90 of about 2,028,246 (339)
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose The aim of this work was to report on the optimization, commissioning, and validation of a beam model using a commercial independent dose verification software RadCalc version 7.2 (Lifeline Software Inc, Tyler, TX, USA), along with 4 years of experience employing RadCalc for offline and online monitor unit (MU) verification on the ...
Urszula Jelen +3 more
wiley +1 more source
Spectral radius and extremal graphs for class of unicyclic graph with pendant vertices
Advances in Mechanical Engineering, 2017 In this article, we research on the spectral radius of extremal graphs for the unicyclic graphs with girth g mainly by the graft transformation and matching and obtain the upper bounds of the spectral radius of unicyclic graphs.
Lu Zhi +5 more
doaj +1 more source
Maximum degree and minimum degree spectral radii of some graph operations
Mathematical Biosciences and Engineering, 2022 New results relating to the maximum and minimum degree spectral radii of generalized splitting and shadow graphs have been constructed on the basis of any regular graph, referred as base graph.
Xiujun Zhang +3 more
doaj +1 more source
Lower spectral radius and spectral mapping theorem for suprema preserving mappings
, 2017 We study Lipschitz, positively homogeneous and finite suprema preserving mappings defined on a max-cone of positive elements in a normed vector lattice.
Müller, Vladimir, Peperko, Aljoša
core +1 more source
Spectral characterizations of graphs with small spectral radius
Linear Algebra and its Applications, 2012 AbstractA graph is said to have a small spectral radius if it does not exceed the corresponding Hoffmann limit value. In the case of (signless) Laplacian matrix, the Hoffmann limit value is equal to ϵ+2=4.38+, with ϵ being the real root of x3-4x-4. Here the spectral characterization of connected graphs with small (signless) Laplacian spectral radius is
WANG J. F., BELARDO, FRANCESCO
openaire +4 more sources
International Journal of Adaptive Control and Signal Processing, EarlyView.Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez +2 more
wiley +1 more source
Spectral radius, numerical radius, and the product of operators
Journal of Mathematical Analysis and Applications, 2015 9 ...
Che-Man Cheng +4 more
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Advanced Engineering Materials, EarlyView.Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec +6 more
wiley +1 more source
A Spectral Strong Approximation Theorem for Measure Preserving Actions [PDF]
, 2014 Let $\Gamma$ be a finitely generated group acting by probability measure preserving maps on the standard Borel space $(X,\mu)$. We show that if $H\leq\Gamma$ is a subgroup with relative spectral radius greater than the global spectral radius of the ...
Abert, Miklos
core
Spectral radius of random matrices with independent entries [PDF]
Probability and Mathematical Physics, 2019 We consider random $n\times n$ matrices $X$ with independent and centered entries and a general variance profile. We show that the spectral radius of $X$ converges with very high probability to the square root of the spectral radius of the variance ...
Johannes Alt, L. Erdős, T. Kruger
semanticscholar +1 more source