Results 41 to 50 of about 1,644,718 (204)

New Condition of Automatic Continuity of Dense Range Homomorphisms on Jordan – Banach Algebras [PDF]

مجلة التربية والعلم, 2018
The following open problem stated that, if T: A⟶B is a dense range homomorphism between Banach algebras A and B such that B is semi-simple. Is T automatically continuous? (see [1]).
RUQAYAH N. BALO, NADIA A. ABDULRAZAQ, DUAA F. ABDULLAH   +2 more
doaj   +1 more source

Spectral Sufficient Conditions on Pancyclic Graphs

Complexity, 2021
A pancyclic graph of order n is a graph with cycles of all possible lengths from 3 to n. In fact, it is NP-complete that deciding whether a graph is pancyclic.
Guidong Yu, Tao Yu, Xiangwei Xia, Huan Xu   +3 more
doaj   +1 more source

Albertson (Alb) spectral radii and Albertson (Alb) energies of graph operation

Frontiers in Chemistry, 2023
The sum of the absolute eigenvalues of the adjacency matrix make up graph energy. The greatest absolute eigenvalue of the adjacency matrix is represented by the spectral radius of the graph.
Muhammad Mobeen Munir, Urwah Tul Wusqa
doaj   +1 more source

Bounds for the spectral radius of positive operators

Electronic Journal of Differential Equations, 2022
Mohammed Said El Khannoussi, Abderrahim Zertiti   +1 more
doaj   +3 more sources

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, Meijin Xu, Xiujuan Liu, Xiaodong Chen, Chen Chen, Yan-Jun Liu   +5 more
doaj   +1 more source

Extending stability through hierarchical clusters in Echo State Networks

Frontiers in Neuroinformatics, 2010
Echo State Networks (ESN) are reservoir networks that satisfy well-established criteria for stability when constructed as feedforward networks. Recent evidence suggests that stability criteria are altered in the presence of reservoir substructures, such ...
Sarah Jarvis, Sarah Jarvis, Stefan Rotter, Stefan Rotter, Ulrich Egert, Ulrich Egert   +5 more
doaj   +1 more source

The Aα-Spectral Radii of Graphs with Given Connectivity

Mathematics, 2019
The A α -matrix is A α ( G ) = α D ( G ) + ( 1 − α ) A ( G ) with α ∈ [ 0 , 1 ] , given by Nikiforov in 2017, where A ( G ) is adjacent matrix, and D ( G ) is its ...
Chunxiang Wang, Shaohui Wang
doaj   +1 more source

A spectral method for discriminating thermodynamic phase and retrieving cloud optical thickness and effective radius using transmitted solar radiance spectra [PDF]

Atmospheric Measurement Techniques, 2015
A new retrieval scheme for cloud optical thickness, effective radius, and thermodynamic phase was developed for ground-based measurements of cloud shortwave solar spectral transmittance.
S. E. LeBlanc, P. Pilewskie, K. S. Schmidt, O. Coddington   +3 more
doaj   +1 more source

Characterizing an odd [1, b]-factor on the distance signless Laplacian spectral radius [PDF]

, 2023
Sizhong Zhou, Hongxia Liu, Sizhong Zhou, Hongxia Liu   +3 more
openalex   +1 more source

Systematically smaller single-epoch quasar black hole masses using a radius–luminosity relationship corrected for spectral bias [PDF]

, 2022
Maithil, Jaya, Brotherton, Michael S., Shemmer, Ohad, Du Pu, Wang, Jian-Min, Myers, Adam D., McLane, Jacob N., Dix, Cooper, Matthews, Brandon M.   +8 more
openalex   +1 more source