On some numerical representation of Post algebras
J. Klukowski, T. Traczyk (1977)
Colloquium Mathematicae
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Displaying similar documents to “Maps preserving numerical radius distance on C*-algebras”
On some numerical representation of Post algebras
Numerical index with respect to an operator
Mohammad Ali Ardalani (2014)
Studia Mathematica
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We introduce new concepts of numerical range and numerical radius of one operator with respect to another one, which generalize in a natural way the known concepts of numerical range and numerical radius. We study basic properties of these new concepts and present some examples.
On Jerzy Baksalary's contribution to numerical methods
Anita Dobek (2008)
Discussiones Mathematicae Probability and Statistics
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Certain notes on the numerical range of an unbounded operator
A. Torgašev (1975)
Matematički Vesnik
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Mathematical and numerical approaches for multiscale problems
E. Cancès, S. Labbé (2012)
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Numerical methods for MHD problems
Dostál, Michal
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On numerical evaluation of the maximum of a function
M. Życzkowski (1965)
Applicationes Mathematicae
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On some numerical constants associated with abstract algebras
K. Urbanik (1966)
Fundamenta Mathematicae
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On upper and lower bounds of the numerical radius and an equality condition
Takeaki Yamazaki (2007)
Studia Mathematica
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We give an inequality relating the operator norm of T and the numerical radii of T and its Aluthge transform. It is a more precise estimate of the numerical radius than Kittaneh's result [Studia Math. 158 (2003)]. Then we obtain an equivalent condition for the numerical radius to be equal to half the operator norm.
Experimental approaches to Kuttner's problem.
Gneiting, Tilmann, Konis, Kjell, Richards, Donald (2001)
Experimental Mathematics
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The polygonal method of solving the differential equation y' = h(t, y, y, y')
Z. Kowalski (1963)
Annales Polonici Mathematici
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My wonderful numerical analysis teachers -- Milan Práger and Emil Vitásek
Křížek, Michal
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General numerical radius inequalities for matrices of operators
Mohammed Al-Dolat, Khaldoun Al-Zoubi, Mohammed Ali, Feras Bani-Ahmad (2016)
Open Mathematics
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The Bishop-Phelps-Bollobás property for numerical radius in ℓ₁(ℂ)
Antonio J. Guirao, Olena Kozhushkina (2013)
Studia Mathematica
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We show that the set of bounded linear operators from X to X admits a Bishop-Phelps-Bollobás type theorem for numerical radius whenever X is ℓ₁(ℂ) or c₀(ℂ). As an essential tool we provide two constructive versions of the classical Bishop-Phelps-Bollobás theorem for ℓ₁(ℂ).
On numerical range of sp(2n, C)
Wen Yan, Jicheng Tao, Zhao Lu (2016)
Special Matrices
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In this paper we studied the classical numerical range of matrices in sp(2n, C). We obtained some result on the relationship between the numerical range of a matrix in and that [...] of its diagonal block, the singular values of its off-diagonal block A2.