Results 1 to 10 of about 221 (119)
An epidemic prediction from analysis of a combined HIV-COVID-19 co-infection model via ABC-fractional operator [PDF]
Alexandria Engineering Journal, 2021 The whole world is still shaken by the new corona virus and many countries are starting opting for the lockdown again after the first wave that already killed thousands of people.
Idris Ahmed +5 more
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Various Product on Multi Fuzzy Graphs
Ratio Mathematica, 2022 In this paper, the definition of complement of multi fuzzy graph, direct sum of two multi fuzzy graphs are given and derived some theorems related to them.
R Muthuraj, K Krithika, S Revathi
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, 2021 Stronger results will appear in a new ...
Kosiek, Marek, Rudol, Krzysztof
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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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Corona theorems for subalgebras of $H^\infty$.
Michigan Mathematical Journal, 1989 Raymond Mortini
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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.
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The generalized corona theorem
Mathematische 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.
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Corona Theorem for the Dirichlet-Type Space
The 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 ...
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