Results 91 to 100 of about 762,341 (222)
Characterization of Oblique Dual Frame Pairs
EURASIP Journal on Advances in Signal Processing, 2006 Given a frame for a subspace of a Hilbert space , we consider all possible families of oblique dual frame vectors on an appropriately chosen subspace .
Christensen Ole, Eldar Yonina C
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Finding metastabilities in reversible Markov chains based on incomplete sampling
Special Matrices, 2017 In order to fully characterize the state-transition behaviour of finite Markov chains one needs to provide the corresponding transition matrix P. In many applications such as molecular simulation and drug design, the entries of the transition matrix P ...
Fackeldey Konstantin +2 more
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Perturbation of Invariant Subspaces
Journal of Mathematical Analysis and Applications, 1996 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Invariant Means and Reversible Semigroup of Relatively Nonexpansive Mappings in Banach Spaces
Abstract and Applied Analysis, 2014 The purpose of this paper is to study modified Halpern type and Ishikawa type iteration for a semigroup of relatively nonexpansive mappings I={T(s):s∈S} on a nonempty closed convex subset C of a Banach space with respect to a sequence of asymptotically ...
Kyung Soo Kim
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Nearly invariant Brangesian subspaces
Canadian Mathematical BulletinAbstractThis article describes Hilbert spaces contractively contained in certain reproducing kernel Hilbert spaces of analytic functions on the open unit disc which are nearly invariant under division by an inner function. We extend Hitt’s theorem on nearly invariant subspaces of the backward shift operator on $H^2(\mathbb {D})$ as well as its many ...
Arshad Khan, Sneh Lata, Dinesh Singh
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Spectral decomposition of self-adjoint operators in Pontryagin and Krein spaces
Современная математика: Фундаментальные направленияWe consider a self-adjoint operator acting in a Krein space and possessing an invariant subspace that is maximal nonnegative and decomposes into a direct sum of a uniformly positive (i.e., equivalent to a Hilbert space with respect to the inner ...
V. A. Strauss
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Array Geometry-Invariant Space-Time Opportunistic Null-Space Communications
IEEE AccessThis work studies the impact of the array geometry on a space-time extension of a generalized class of null-space precoding format denoted as $\pi $ -waveforms (Projection-Invariant waveforms), which exhibit subspace invariance and robustness to ...
Jordi Borras, Gregori Vazquez
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