Results 1 to 10 of about 414,180 (260)
Schwarz norms for operators [PDF]
James E. Williams
openalex +4 more sources
Norm Bounds for Operator Extensions
Consider the partial \(n\times n\) matrix \(F\) with bounded Hilbert space operator entries, where the lower triangular entries are specified and the strictly upper triangular entries are to be determined. Any choice of the strictly upper triangular entries provides a completion or extension of \(F\).
Mihály Bakonyi+3 more
openalex +3 more sources
Norms of compact perturbations of operators [PDF]
Catherine L. Olsen
openalex +4 more sources
Time-dependent unbounded Hamiltonian simulation with vector norm scaling [PDF]
The accuracy of quantum dynamics simulation is usually measured by the error of the unitary evolution operator in the operator norm, which in turn depends on certain norm of the Hamiltonian.
Dong An, Di Fang, Lin Lin
doaj +1 more source
We give a short and elementary proof of the formula for the norm of a free convolution operator on L 2 {L^2} of a discrete group. The formula was obtained in 1976 by C. Akemann and Ph. Ostrand, and by several other authors afterwards.
Massimo A. Picardello, Tadeusz Pytlik
openaire +3 more sources
For every linear operator between inner product spaces whose operator norm is less than or equal to one, we show that the restriction to the Möbius gyrovector space is Lipschitz continuous with respect to the Poincaré metric.
Keiichi Watanabe
doaj +1 more source
Gap Between Operator Norm and Spectral Radius for the Square of Antidiagonal Block Operator Matrices
In this work, the gap between operator norm and spectral radius for the square of antidiagonal block operator matrices in the direct sum of Banach spaces has been investigated, and also the gap between operator norm and numerical radius for the square of
Elif Otkun Çevik
doaj +1 more source
Operators That Achieve the Norm [PDF]
17 ...
Wladimir Neves, Xavier Carvajal
openaire +3 more sources
Norms of a Product of Integral and Composition Operators between Some Bloch-Type Spaces
We present some formulas for the norm, as well as the essential norm, of a product of composition and an integral operator between some Bloch-type spaces of analytic functions on the unit ball, in terms of given symbols and weights.
Stevo Stević
doaj +1 more source
Sum of some product-type operators from mixed-norm spaces to weighted-type spaces on the unit ball
Let $ u_{j} $ be the holomorphic functions on the open unit ball $ \mathbb{B} $ in $ \mathbb{C}^{n} $, $ j = \overline{0, m} $, $ \varphi $ a holomorphic self-map of $ \mathbb{B} $, and $ \Re^{j} $ the $ j $th iterated radial derivative operator. In this
Cheng-shi Huang +2 more
doaj +1 more source