Results 21 to 30 of about 505,620 (175)

A Gaussian Model for the Time Development of the Sars-Cov-2 Corona Pandemic Disease. Predictions for Germany Made on 30 March 2020

open access: yesPhysics, 2020
For Germany, it is predicted that the first wave of the corona pandemic disease reaches its maximum of new infections on 11 April 2020 − 3.4 + 5.4 days with 90% confidence. With a delay of about 7 days the maximum demand on breathing machines
Reinhard Schlickeiser   +1 more
doaj   +1 more source

Corona Haikus @ the Corona Bug Exhibition

open access: yes, 2021
The Corona Haikus transmedia project has been selected to be exhibited at the Corona Bug Exhibition (Rio de Janeiro, Brasil, 8 August 2021 - 30 January ...
Gaudenzi, S.
core   +4 more sources

Corona Theorem [PDF]

open access: yes, 2023
For a wide class of domains $G\subset\mathbb C^d$ including balls and polydisks we prove the density of their canonical image in the spectrum of $H^\infty(G)$. This Corona Theorem is established first in its abstract version for certain uniform algebras.
Rudol, Krzysztof, Kosiek, Marek
core   +1 more source

On the Bézout equation in the ring of periodic distributions

open access: yesTopological Algebra and its Applications, 2016
A corona type theorem is given for the ring D'A(Rd) of periodic distributions in Rd in terms of the sequence of Fourier coefficients of these distributions,which have at most polynomial growth.
Rupp Rudolf, Sasane Amol
doaj   +1 more source

Corona theorem for the Dirichlet-type space [PDF]

open access: yes, 2023
This paper utilizes Cauchy's transform and duality for the Dirichlet-type space $D(\mu)$ with positive superharmonic weight $U_\mu$ on the unit disk $\mathbb{D}$ to establish the corona theorem for the Dirichlet-type multiplier algebra $M\big(D(\mu)\big)$
Luo, Shuaibing
core   +1 more source

The generalized corona theorem

open access: yesMathematische Annalen, 1995
This is another beautiful paper on the ideal theory of \(H^\infty\) by one of the leading experts (R.M.) and colleagues. \(H^\infty\) is the ring of bounded holomorphic functions in the open unit disk \(\mathbb{D}\). For \(f_1,\dots, f_N\in H^\infty\), \(J:= \{f\in H^\infty: |f|\leq C_f \sum^N_{j= 1} |f_j|\), for some finite constant \(C_f\}\) is an ...
Gorkin, P., Mortini, R., Nicolau, A.
openaire   +2 more sources

Die österreichische Gesellschaft während der Corona-Pandemie [PDF]

open access: yes, 2022
In diesem Buch untersuchen Soziolog*innen und Umfrageforscher*innen erstmals systematisch in zehn fundierten Beiträgen die gesellschaftlichen Auswirkungen der Corona-Krise in Österreich.

core   +1 more source

Corona Theorem for the Dirichlet-Type Space

open access: yesThe Journal of Geometric Analysis, 2022
This paper utilizes Cauchy's transform and duality for the Dirichlet-type space $D(μ)$ with positive superharmonic weight $U_μ$ on the unit disk $\mathbb{D}$ to establish the corona theorem for the Dirichlet-type multiplier algebra $M\big(D(μ)\big)$ that: if $$\{f_1,...,f_n\}\subseteq M\big(D(μ)\big)\quad\text{and}\quad \inf_{z\in\mathbb{D}}\sum_{j=1 ...
openaire   +2 more sources

Spectra of subnormal pairs [PDF]

open access: yesOpuscula Mathematica, 2007
In this short note we present an example related to joint spectra of subnormal pairs of bounded operators. A counterexample to the equality between Taylor's spectrum and the closure of the defect spectrum is given. This example is related to the author's
Krzysztof Rudol
doaj  

Spectral synthesis in the multiplier algebra of a C_0(X)-algebra [PDF]

open access: yes, 2014
We are grateful to the referee for a number of helpful comments and for pointing out an error in the original proof of Theorem 3.6.Peer ...
Archbold, Robert J   +1 more
core   +1 more source

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