Results 11 to 20 of about 505,620 (175)
The Corona Theorem as an Operator Theorem [PDF]
Proceedings of the American Mathematical Society, 1978 We provide a short proof of a theorem of W. B. Arveson in operator theory. The conclusion of this theorem is the same as that of the Corona Theorem but the hypotheses are operator theoretic. Our proof yields an exact value for the constant involved. We also comment on this theorem as a new approximation problem.
C. F. Schubert
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Bactericidal effect of corona discharges in atmospheric air [PDF]
, 2012 The present paper explores the possibilities of using impulsive and steady-state corona discharges for bio-decontamination operations. A high tension tubular corona electrode was stressed with positive or negative dc voltage with magnitude up to 26 kV ...
Given, M +6 more
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The triggered behavior of a controlled corona stabilised cascade switch [PDF]
, 2011 Corona stabilised switches have been shown to have advantages in pulse power switching applications due to their high repetition rates and low jitter.
Given, M +5 more
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A matricial corona theorem II [PDF]
Proceedings of the American Mathematical Society, 2007 We extend the “matricial corona theorem” of M. Andersson to general algebras of functions which satisfy a corona theorem.
Trent, Tavan T., Zhang, Xinjun
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On the Corona Theorem on Smooth Curves [PDF]
The Journal of Geometric Analysis, 2018 We prove the corona theorem for domains whose boundary lies in certain smooth quasicircles. These curves, which are not necessarily Dini-smooth, are defined by quasiconformal mappings whose complex dilatation verifies certain conditions. Most importantly we do not assume any "thickness" condition on the boundary domain.
J. M. Enríquez-Salamanca +1 more
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A matricial corona theorem [PDF]
Proceedings of the American Mathematical Society, 2006 We show that a usual corona-type theorem on a space of functions automatically extends to a matrix version.
Trent, Tavan, Zhang, Xinjun
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From ℋ∞ to 𝒩. Pointwise properties and algebraic structure in the Nevanlinna class
Concrete Operators, 2020 This survey shows how, for the Nevanlinna class 𝒩 of the unit disc, one can define and often characterize the analogues of well-known objects and properties related to the algebra of bounded analytic functions ℋ∞: interpolating sequences, Corona theorem,
Massaneda Xavier, Thomas Pascal J.
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Alexandria Engineering Journal, 2020 In the current article, we studied the novel corona virus (2019-nCoV or COVID-19) which is a threat to the whole world nowadays. We consider a fractional order epidemic model which describes the dynamics of COVID-19 under nonsingular kernel type of ...
Muhammad Sher +4 more
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Bi-parameter Potential theory and Carleson measures for the Dirichlet space on the bidisc
Discrete Analysis, 2023 Bi-parameter potential theory and Carleson measures for the Dirichlet space on the bidisc, Discrete Analysis 2023:22, 58 pp. Carleson measures arise naturally when considering harmonic or holomorphic extensions from the boundary of a domain to the ...
Nicola Arcozzi +3 more
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Respiratory Research, 2021 Background It is essential to avoid admission of patients with undetected corona virus disease 2019 (COVID-19) to hospitals’ general wards. Even repeated negative reverse transcription polymerase chain reaction (RT-PCR) results do not rule-out COVID-19 ...
Ulf Teichgräber +10 more
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