The Bass and topological stable ranks of and
R Mortini, BD Wick - 2009 - degruyter.com
In this note we prove that the Bass stable rank of is two. This establishes the validity of a
conjecture by S. Treil. We accomplish this in two different ways, one by giving a direct proof …
conjecture by S. Treil. We accomplish this in two different ways, one by giving a direct proof …
APPROXIMATION BY INVERTIBLE ELEMENTS AND THE GENERALIZED E-STABLE RANK FOR A(D) R AND C(D) sym
R Mortini, R Rupp - Mathematica Scandinavica, 2011 - JSTOR
We determine the generalized E-stable ranks for the real algebra, C (D) sym, of all complex
valued continuous functions on the closed unit disk, symmetric to the real axis, and its …
valued continuous functions on the closed unit disk, symmetric to the real axis, and its …
[图书][B] Algebras of holomorphic functions and control theory
A Sasane - 2013 - books.google.com
This accessible, undergraduate-level text illustrates the role of algebras of holomorphic
functions in the solution of an important engineering problem: the stabilization of a linear …
functions in the solution of an important engineering problem: the stabilization of a linear …
A note on some uniform algebra generated by smooth functions in the plane
R Mortini, R Rupp - Journal of Function Spaces, 2012 - Wiley Online Library
We determine, via classroom proofs, the maximal ideal space, the Bass stable rank as well
as the topological and dense stable rank of the uniform closure of all complex‐valued …
as the topological and dense stable rank of the uniform closure of all complex‐valued …
[PDF][PDF] Reducibility in AR (K), CR (K) and A (K)
R Rupp, A Sasane - Canad. J. Math, 2010 - researchgate.net
Let K denote a compact real symmetric subset of C and let AR (K) denote the real Banach
algebra of all real symmetric continuous functions on K which are analytic in the interior K◦ of …
algebra of all real symmetric continuous functions on K which are analytic in the interior K◦ of …
Real-symmetric extensions of invertible tuples of multivariable continuous functions
R Mortini, R Rupp - Complex Analysis and Operator Theory, 2013 - Springer
We give necessary and sufficient conditions on pairs of real-symmetric compact sets (K, L)
in\mathbb C^ n, K ⊆\, L, such that every invertible n-tuple of real-symmetric continuous …
in\mathbb C^ n, K ⊆\, L, such that every invertible n-tuple of real-symmetric continuous …
Simultaneous Stabilization in
R Mortini, BD Wick - arXiv preprint arXiv:0810.0183, 2008 - arxiv.org
In this note we study the problem of simultaneous stabilization for the algebra $ A_\R (\D) $.
Invertible pairs $(f_j, g_j) $, $ j= 1,..., n $, in a commutative unital algebra are called\textit …
Invertible pairs $(f_j, g_j) $, $ j= 1,..., n $, in a commutative unital algebra are called\textit …
The Bass stable rank for the real Banach algebra A (K) sym
R Mortini, R Rupp - Journal of Functional Analysis, 2011 - Elsevier
We compute the Bass stable rank of the algebra A (K) sym of real-symmetric functions that
are continuous on symmetric compact planar sets K and holomorphic in the interior K∘ of K …
are continuous on symmetric compact planar sets K and holomorphic in the interior K∘ of K …
The covering dimension of a distinguished subset of the spectrum M (H∞) of H∞ and the algebra of real-symmetric and continuous functions on M (H∞)
R Mortini - Topology and its Applications, 2012 - Elsevier
We show that the covering dimension, dimE, of the closure E of the interval]− 1, 1 [in the
spectrum of H∞ equals one. Using Suárezʼs result that dimM (H∞)= 2, we then compute …
spectrum of H∞ equals one. Using Suárezʼs result that dimM (H∞)= 2, we then compute …
Function theory in real Hardy spaces
M Raghupathi, D Singh - Mathematische Nachrichten, 2011 - Wiley Online Library
Function theory in real Hardy spaces - Raghupathi - 2011 - Mathematische Nachrichten - Wiley
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