Results 111 to 120 of about 1,164 (138)
Variation and oscillation inequalities for convolution products [PDF]
arXiv, 2011 We establish variation and oscillation inequalities for convolution products of probability measures on Z.
arxiv
A Note on the Norm and Spectrum of a Foguel Operator [PDF]
arXiv, 2012 We present two ways to compute the norm of a Foguel operator. One of these is algebraic and the other makes use of the Schur complement. This gives a two simpler proof of a result of Garcia. We also provide an extension of these results.
arxiv
Generalized D-Symmetric Operators I [PDF]
, 2008 2000 Mathematics Subject Classification: Primary: 47B47, 47B10; secondary 47A30.Let H be an infinite-dimensional complex Hilbert space and let A, B ∈ L(H), where L(H) is the algebra of operators on H into itself.
Bouali, S., Ech-chad, M.
core
On $l^p$ norms of factorable matrices [PDF]
arXiv, 2013 We study $l^p$ operator norms of factorable matrices and related results. We give applications to $l^p$ operator norms of weighted mean matrices and Copson's inequalities. We also apply the method in this paper to study the best constant in an inequality of Hardy, Littlewood and P\'{o}lya.
arxiv
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria MatematicaIn this paper, we present some results about the aproximation of fixed points of nonexpansive and enriched nonexpansive operators. In order to approximate the fixed points of enriched nonexpansive mappings, we use the Krasnoselskii-Mann iteration for ...
Socaciu Liviu-Ignat
doaj +1 more source
Temperate performance and metabolic adaptations following endurance training performed under environmental heat stress. [PDF]
Physiol Rep, 2021 Maunder E +7 more
europepmc +1 more source
On interpolation and extremal properties of periodic perfect splines [PDF]
arXiv, 2014 Existing and extremal property of periodic perfect spline, which interpolates given function in the mean were proved.
arxiv
Norm inequalities related to the matrix geometric mean [PDF]
Linear Algebra and its Applications, Volume 437, pp. 726-733, 2012, 2015 Inequalities for norms of different versions of the geometric mean of two positive definite matrices are presented.
arxiv
Improved Young and Heinz inequalities with the Kantorovich constant [PDF]
arXiv, 2015 In this article, we study the further refinements and reverses of the Young and Heinz inequalities with the Kantorovich constant. These modified inequalities are used to establish corresponding operator inequalities on Hilbert space and Hilbert-Schmidt norm inequalities.
arxiv
The numerical range as a spectral set [PDF]
arXiv, 2017 It is shown that the numerical range of a linear operator operator in a Hilbert space is a (complete) $(1{+}\sqrt2)$-spectral set. The proof relies, among other things, in the behavior of the Cauchy transform of the conjugates of holomorphic functions.
arxiv