搜索结果: 1-15 共查到“理学 Subspaces”相关记录25条 . 查询时间(0.104 秒)
Subspaces that minimize the condition number of a matrix
Matrix the condition number subspace subspace
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2015/8/10
We define the condition number of a nonsingular matrix on a subspace, and consider the problem of finding a subspace of given dimension that minimizes the condition number of a given matrix. We give a...
Restrictions to Invariant Subspaces of Composition Operators on the Hardy Space of the Disk
composition operator hardy semigroup
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2015/1/19
Invariant subspaces are a natural topic in linear algebra and operator theory. In some rare cases, the restrictions of operators to different invariant subspaces are unitarily equivalent, such as cert...
Transferring Subspaces Between Subjects in Brain-Computer Interfacing
Brain-ComputerInterface CommonSpatia Patterns Non-Stationarity Transfer Learning.
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2012/11/22
Compensating changes between a subjects' training and testing session in Brain Computer Interfacing (BCI) is challenging but of great importance for a robust BCI operation. We show that such changes a...
Mutually unbiased bases as submodules and subspaces
Mutually unbiased bases submodules and subspaces Combinatorics
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2012/6/19
Mutually unbiased bases (MUBs) have been used in several cryptographic and communications applications. There has been much speculation regarding connections between MUBs and finite geometries. Most o...
Norm inequalities for square functions in some Morrey's subspaces
amalgams spaces Morrey spaces commutator g-function of Littlewood-Paley Lusin area function
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2012/5/9
We prove that the intrinsic square function and the intrinsic Littlewood-Paley $g^{\ast}_{\lambda}$-function as defined by Wilson, are bounded in a family of weighted subspaces of Morrey spaces. The c...
Immunity of information encoded in decoherence-free subspaces to particle loss
information decoherence-free subspaces particle loss
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2011/8/17
Abstract: We demonstrate that for an ensemble of qudits, subjected to collective decoherence in the form of perfectly correlated random SU(d) unitaries, quantum superpositions stored in the decoherenc...
Stabilizers of Subspaces under Similitudes of the Klein Quadric, and Automorphisms of Heisenberg Algebras
Klein quadric Grassmann space automorphism orbit nilpotent Lie algebra Heisenberg algebra
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2011/1/17
We determine the groups of automorphisms and their orbits for nilpotent Lie algebras of
class 2 and small dimension, over arbitrary fields (including the characteristic 2 case).
lp-Recovery of the Most Significant Subspace among Multiple Subspaces with Outliers
Best approximating subspace lp minimization as relaxation for l0 minimization
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2011/3/3
We assume data sampled from a mixture of d-dimensional linear subspaces with outliers distributed symmetrically around the origin. We study the recovery of the global l0 subspace (i.e., with largest n...
Symmetric operators with real defect subspaces of the maximal dimension. Applications to differential operators
Symmetric operator Defect subspace Self-adjoint extension
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2011/2/22
Let H be a Hilbert space and let A be a simple symmetric operator in H with equal deficiency indices d := n±(A) < 1. We show that if, for all in an open interval I R, the dimension of defect subsp...
The a priori Tan Theta Theorem for spectral subspaces
Subspace perturbation problem operator Riccati equation Davis-Kahan theorems
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2011/1/19
Let A be a self-adjoint operator on a separable Hilbert space H. Assume that the
spectrum of A consists of two disjoint components s0 and s1 such that the set s0 lies in a finite gap of the set s1.
Symmetric Invariant Subspaces of Complexifications of Linear Operators
Symmetric Invariant Subspaces Complexifications of Linear Operators
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2011/2/22
Let T : X → X be a linear operator on a complex Banach space. Denote by (T ) and R(, T ) its spectrum and resolvent.
Mathieu Subspaces of Univariate Polynomial Algebras
Mathieu subspaces the (Strong) Image Conjecture the (Strong) Integral Conjecture
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2011/1/20
We first give a characterization for Mathieu subspaces of univariate polynomial algebras over fields in terms of their radicals.We then deduce that for some classes of classical univariate
orthogonal...
Subspaces of a para-quaternionic Hermitian vector space
Subspaces para-quaternionic Hermitian vector space
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2010/11/19
Let $(\tilde Q,g) $ be a para-quaternionic Hermitian structure on the real vector space $V$. By referring to the tensorial presentation $(V, \tilde{Q},g) \simeq (H^2 \otimes E^{2n}, \mathfrak{sl}(H),\...
Manipulating quantum information on the controllable systems or subspaces
Manipulating quantum information controllable systems subspaces
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2010/10/29
In this paper, we explore how to constructively manipulate quantum information on the controllable systems or subspaces. It is revealed that one can make full use of distinguished properties of Pauli ...
Tight embedding of subspaces of $L_p$ in $\ell_p^n$ for even $p$
Tight embedding of subspaces subspaces
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2010/11/30
Using a recent result of Batson, Spielman and Srivastava, We ob-tain a tight estimate on the dimension of ℓn p , p an even integer, needed to almost isometrically contain all k-imensional subspa...