Results 21 to 30 of about 1,235,690 (292)

Automatic Continuity of Dense Range Homomorphisms into Multiplicatively Semisimple Complete Normed Algebras [PDF]

مجلة التربية والعلم, 2014
The following open problem state that: If  is a dense range homomorphism from Banach algebra into Banach algebra  such that  is semisimple. Is  automatically continuous?
RUQAYAH BALO
doaj   +1 more source

Inequalities for the Norm and Numerical Radius of Composite Operators in Hilbert Spaces [PDF]

, 2005
Some new inequalities for the norm and the numerical radius of composite operators generated by a pair of operators are ...
Dragomir, Sever S
core   +3 more sources

Quotient of spectral radius, (signless) Laplacian spectral radius and clique number of graphs [PDF]

, 2002
summary:In this paper, the upper and lower bounds for the quotient of spectral radius (Laplacian spectral radius, signless Laplacian spectral radius) and the clique number together with the corresponding extremal graphs in the class of connected graphs ...
Das, Kinkar Ch., Liu, Muhuo, A.J. Hoffman, R.A. Brualdi   +3 more
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Co-spectral radius of intersections [PDF]

, 2023
We study the behavior of the co-spectral radius of a subgroup H of a discrete group Γ under taking intersections. Our main result is that the co-spectral radius of an invariant random subgroup does not drop upon intersecting with a deterministic co ...
Frączyk, Mikołaj, van Limbeek, Wouter, Fraczyk, Mikolaj   +2 more
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Cliques and the spectral radius

Journal of Combinatorial Theory, Series B, 2007
We present a number of relations involving the number of cliques in a graph and its spectral radius.
Béla Bollobás, Vladimir Nikiforov 0001
openaire   +2 more sources

Influence of ice crystal shape on retrieval of cirrus optical thickness and effective radius: A case study [PDF]

, 2009
Airborne measurements of spectral upwelling radiances (350â  2200 nm) reflected by cirrus using the Spectral Modular Airborne Radiation measurement sysTem (SMART)-Albedometer were made over land and water surfaces.
Minikin, Andreas, Gayet, Jean-Francois, Emde, Claudia, Eichler, Heike, Ehrlich, André, Mioche, Guillaume, Wendisch, Manfred, Wirth, Martin   +7 more
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The Laplacian spectral radius of graphs [PDF]

, 2010
summary:The Laplacian spectral radius of a graph is the largest eigenvalue of the associated Laplacian matrix. In this paper, we improve Shi's upper bound for the Laplacian spectral radius of irregular graphs and present some new bounds for the Laplacian
Jianxi Li, Chang, An, Wai Chee Shiu, An Chang, Li, Jianxi, Shiu, Wai Chee   +5 more
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On the joint spectral radius. II [PDF]

Proceedings of the American Mathematical Society, 1992
In this paper we show that if T =
Chō, Muneo, Huruya, Tadasi, Wrobel, Volker   +2 more
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A sharp upper bound for the spectral radius of a nonnegative matrix and applications [PDF]

, 2011
summary:We obtain a sharp upper bound for the spectral radius of a nonnegative matrix. This result is used to present upper bounds for the adjacency spectral radius, the Laplacian spectral radius, the signless Laplacian spectral radius, the distance ...
Shu, Yujie, Zhang, Xiao-Dong, You, Lihua, YA-HONG CHEN, XIAO-DONG ZHANG, RONG-YING PAN   +5 more
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On the Distance Spectral Radius of Trees with Given Degree Sequence

Discussiones Mathematicae Graph Theory, 2020
We consider the problem of maximizing the distance spectral radius and a slight generalization thereof among all trees with some prescribed degree sequence.
Dadedzi Kenneth, Misanantenaina Valisoa Razanajatovo, Wagner Stephan   +2 more
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