Results 41 to 50 of about 385,913 (283)

Backward Shifts on Banach SpacesC(X)

open access: yesJournal of Mathematical Analysis and Applications, 1996
A backward shift on a Banach space \(E\) is an operator \(T\) with one-dimensional kernel such that the corresponding operator from the quotient of \(E\) by the kernel of \(T\) is an isometry and so that \(\bigcup_{n\geq 1}\text{Ker }T^n\) is dense in \(E\). The authors settle a conjecture of J. R.
Rajagopalan, M., Sundaresan, K.
openaire   +2 more sources

Duality of Channel Encoding and Decoding - Part I: Rate-1 Binary Convolutional Codes

open access: yes, 2016
In this paper, we revisit the forward, backward and bidirectional Bahl-Cocke-Jelinek-Raviv (BCJR) soft-input soft-output (SISO) maximum a posteriori probability (MAP) decoding process of rate-1 binary convolutional codes.
Bahl   +7 more
core   +1 more source

Comparison of sleep quality based on direction of shift rotation in electronics workers [PDF]

open access: yes, 2016
BACKGROUND: Previous studies have reported the effects of direction of shift rotation on sleep, however, the findings are inconsistent. In this study, we investigated sleep quality related to direction of shift rotation using large-scale data from ...
Byung-Seong Suh   +7 more
core   +1 more source

Growth of hypercyclic entire functions for some non-convolution operators

open access: yesConcrete Operators, 2023
A continuous linear operator TT defined on a Fréchet space XX is said to be hypercyclic if there exists f∈Xf\in X such that, the orbit {Tnf}\left\{{T}^{n}f\right\} is dense in XX. In this article, we consider the operators introduced by Aron and Markose,
Romero de la Rosa María Pilar
doaj   +1 more source

The specification property for backward shifts [PDF]

open access: yesJournal of Difference Equations and Applications, 2012
This work was supported in part by MEC and FEDER, Project MTM2010-14909, and by Generalitat Valenciana, Project PROMETEO/2008/101.
Bartoll Arnau, Salud|||0000-0002-6395-0981   +2 more
openaire   +3 more sources

Pseudocontinuation and cyclicity for random power series

open access: yes, 2007
We prove that a random function in the Hardy space $H^2$ is a non-cyclic vector for the backward shift operator almost surely.
Abakumov, Evgeny, Poltoratski, Alexei
core   +4 more sources

Construction of Algebraic and Difference Equations with a Prescribed Solution Space

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2017
This paper studies the solution space of systems of algebraic and difference equations, given as auto-regressive (AR) representations A(σ)β(k) = 0, where σ denotes the shift forward operator and A(σ) is a regular polynomial matrix.
Moysis Lazaros, Karampetakis Nicholas P.
doaj   +1 more source

Trends in the Airglow Temperatures in the MLT Region—Part 2: SABER Observations and Comparisons to Model Simulations

open access: yesAtmosphere, 2021
The Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) temperature measurements at low latitudes from 89 km to 97 km were used to derive the F10.7 and Ap index trends, and the trends were compared to model simulations. The annual mean
Tai-Yin Huang, Michael Vanyo
doaj   +1 more source

Backward Shift Invariant Operator Ranges

open access: yesJournal of Functional Analysis, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Reverse Doppler effect in backward spin waves scattered on acoustic waves

open access: yes, 2009
We report on the observation of reverse Doppler effect in backward spin waves reflected off of surface acoustic waves. The spin waves are excited in a yttrium iron garnet (YIG) film. Simultaneously, acoustic waves are also generated.
A. A. Serga   +12 more
core   +1 more source

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