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IEEE Transactions on Acoustics Speech and Signal Processing
Article . 1984 . Peer-reviewed
License: IEEE Copyright
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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A positive-definite matrix which is not extendible

descriptionPublicationkeyboard_double_arrow_right Article 01 Aug 1984 English Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Transactions on Acoustics, Speech, and Signal Processing, volume 32, pages 930-932 (issn: 0096-3518, Copyright policy )
Authors: S. Lang;

doi: 10.1109/tassp.1984.1164408

A positive-definite matrix which is not extendible

Abstract

This note treats the problem of extendibility of a positive-definite matrix. The difference between extendibility and positive- semidefiniteness in multiple dimensions is described. The construction of a positive definite nonextendible correlation matrix is also given.

Keywords

Canonical forms, reductions, classification, time-series, correlation, nonextendible correlation matrix, Inference from stochastic processes and spectral analysis, positive-definite matrix

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    		 3
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    influence
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
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