Results 1 to 10 of about 326,660 (252)

Group-invariant Subspace Clustering [PDF]

open access: yes2015 53rd Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2015
Proceedings of Allerton ...
Shuchin Aeron, Eric Kernfeld
openaire   +5 more sources

Reconstruction in time-warped weighted shift-invariant spaces with application to spline subspaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We discuss the reproducing kernel structure in shift-invariant spaces and the weighted shift-invariant spaces, and obtain the reconstruction formula in time-warped weighted shift-invariant spaces, then apply them to a spline subspace.
Jun Xian, Yongjin Li
doaj   +1 more source

An invariant subspace problem for multilinear operators on Banach spaces and algebras

open access: yesJournal of Inequalities and Applications, 2016
This paper is concerned with the study of invariant subspace problems for nonlinear operators on Banach spaces/algebras. Our study reveals that one faces unprecedented challenges such as lack of vector space structure and unbounded spectral sets when ...
John Emenyu
doaj   +1 more source

A complete set of Lorentz-invariant wave packets and modified uncertainty relation

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We define a set of fully Lorentz-invariant wave packets and show that it spans the corresponding one-particle Hilbert subspace, and hence the whole Fock space as well, with a manifestly Lorentz-invariant completeness relation (resolution of identity ...
Kin-ya Oda, Juntaro Wada
doaj   +1 more source

Uniformly invariant normed spaces

open access: yesBibechana, 2013
In this work, we introduce the concepts of compactly invariant and uniformly invariant. Also we define sometimes C-invariant closed subspaces and then prove every m-dimensional normed space with m > 1 has a nontrivial sometimes C-invariant closed ...
AM Forouzanfar   +2 more
doaj   +3 more sources

Invariant Subspaces for Derivations [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
In this article it is proved that most of the known sufficient conditions for a subspace from Lat A \mathcal {A}
openaire   +1 more source

Invariant Lagrangian subspaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
It is proved that on Hilbert spaces with strong symplectic form, every symplectic operator I + C I +
openaire   +1 more source

Invariant subspaces in the polydisk [PDF]

open access: yesPacific Journal of Mathematics, 1986
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Agrawal, O. P.   +2 more
openaire   +3 more sources

Adaptive interference suppression based on an invariant subspace of matrices matching for a horizontal array in underwater acoustics [PDF]

open access: yesJASA Express Letters
Passive detection of target-of-interest (TOI) within strong interferences poses a challenge. This paper introduces an adaptive interference suppression based on an invariant subspace of matrix matching. Assume that the TOI-bearing intervals are known. We
Xueli Sheng   +4 more
doaj   +1 more source

Quasireducible operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We introduce the concept of quasireducible operators. Basic properties and illustrative examples are considered in some detail in order to situate the class of quasireducible operators in its due place.
C. S. Kubrusly
doaj   +1 more source

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