Subordinations for Functions with Positive Real Part
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DOI: 10.1007/s11785-017-0690-4
Abstract: Some sufficient conditions are determined for certain first order differential subordinations to imply the corresponding analytic solution is subordinate to a rational, exponential, or sine function. By applying these results, we also obtain sufficient conditions… read more here.
Keywords: functions positive; positive real; real part; subordinations functions ... See more keywords
A Positive Real Lemma Type-Result with Respect to the Anisotropic Norm for Stochastic Systems with Multiplicative Noise
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DOI: 10.1016/j.ifacol.2018.11.119
Abstract: Abstract The passivity of discrete–time linear stochastic systems with multiplicative noise is considered, where the systems inputs have bounded anisotropy. Using first principles analysis applying completing the square arguments, it is proved that such systems… read more here.
Keywords: positive real; stochastic systems; real lemma; multiplicative noise ... See more keywords
Synthesis of strictly positive real ℋ2 controllers using dilated LMIs
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Control"
DOI: 10.1080/00207179.2018.1453615
Abstract: ABSTRACT This paper considers strictly positive real (SPR) controller design via direct minimisation of an upper bound on the closed-loop norm. To realise a tractable design problem, an observer-based control structure is assumed and a… read more here.
Keywords: positive real; dilated lmis; strictly positive; using dilated ... See more keywords
Comments on “New Results on the Characterization of Strictly Positive Real Matrix Transfer Functions”
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DOI: 10.1109/tac.2022.3218616
Abstract: In this note, we address an inconsistency in our recent article (Hakimi-Moghaddam and Ferrante, 2021). In particular, we provide an example showing that Lemma III.1 of that article is not correct. We show how the… read more here.
Keywords: strictly positive; new results; results characterization; comments new ... See more keywords
COVID-19 Carrier or Pneumonia: Positive Real-Time Reverse-Transcriptase Polymerase Chain Reaction but Negative or Positive Chest CT Results
Sign Up to like & getrecommendations! Published in 2020 at "Korean Journal of Radiology"
DOI: 10.3348/kjr.2020.0360
Abstract: Copyright © 2020 The Korean Society of Radiology COVID-19 Carrier or Pneumonia: Positive Real-Time ReverseTranscriptase Polymerase Chain Reaction but Negative or Positive Chest CT Results Pinggui Lei, MD, PhD, Bing Fan, MD, Yipeng Sun, MD… read more here.
Keywords: positive real; real time; radiology; pneumonia positive ... See more keywords