Results 11 to 20 of about 1,147,876 (300)

On automatic continuity of homomorphisms [PDF]

open access: yesProceedings of the American Mathematical Society, 1999
Introducing a weaker notion of regularity in a topological algebra, we examine and improve an automatic continuity theorem given by the second author. Examples and applications are given.
Beddaa, A., Bhatt, S. J., Oudadess, M.
openaire   +3 more sources

AUTOMATIC CONTINUITY FOR ISOMETRY GROUPS [PDF]

open access: yesJournal of the Institute of Mathematics of Jussieu, 2017
We present a general framework for automatic continuity results for groups of isometries of metric spaces. In particular, we prove automatic continuity property for the groups of isometries of the Urysohn space and the Urysohn sphere, i.e. that any homomorphism from either of these groups into a separable group is continuous. This answers a question of
Marcin Sabok
openaire   +3 more sources

Automatic continuity of perturbations of casual operators [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1997
We obtain automatic continuity results for finite-rank perturbations of causal sequence space operators, and provide examples to illustrate cases where automatic continuity does not hold.
Harrison, K.J., Eaton, L-J, Ward, J.A.
openaire   +3 more sources

Aspects of automatic continuity

open access: yes
We introduce several new results regarding automatic continuity in models of AC+DC without Vitali sets, which involves novel applications of the characteristic subgroup associated with a homomorphism.
Rosendal, Christian, Suarez, Luis Carlos
openaire   +3 more sources

Double Derivations, Higher Double Derivations and Automatic Continuity [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2013
Let  be a Banach algebra. Let  be linear mappings on . First we demonstrate a theorem concerning the continuity of double derivations; especially that all of -double derivations are continuous on semi-simple Banach algebras, in certain case.
H. Mahdavian Rad, A. Niknam
doaj   +2 more sources

Automatic continuity of polynomial maps and cocycles [PDF]

open access: yesProceedings of the American Mathematical Society
Classical theorems from the early 20th century state that any Haar measurable homomorphism between locally compact groups is continuous. In particular, any Lebesgue-measurable homomorphism
Meyerovitch, Tom, Solan, Omri Nisan
core   +4 more sources

The automatic continuity for particular type of homomorphism nonassociative algebras [PDF]

open access: yesمجلة التربية والعلم, 2008
Rodriguez conjecture ensures the automatic continuity of a dense range homomorphism from a complete normed nonassociative algebra into another one with zero strong radical. Rodriguez conjecture still unsolved.
Roqya Ballo, Amer Mohammed
doaj   +1 more source

Joint Continuity of Bi-multiplicative Functionals [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2021
For Banach algebras $\mathcal{A}$ and $\mathcal{B}$, we show that if $\mathfrak{A}=\mathcal{A}\times \mathcal{B}$ is unital, then each bi-multiplicative mapping from $\mathfrak{A}$ into a semisimple commutative Banach algebra $\mathcal{D}$ is jointly ...
Abbas Zivari-Kazempour, Mohamad Valaei
doaj   +1 more source

Cantor and continuity [PDF]

open access: yes, 2019
Georg Cantor (1845-1919), with his seminal work on sets and number, brought forth a new field of inquiry, set theory, and ushered in a way of proceeding in mathematics, one at base infinitary, topological, and combinatorial. While this was the thrust,
Kanamori, Akihiro, Akihiro Kanamori
core   +2 more sources

How can the transition from conventional to automatic measurements affect the climatological normals? – A case study from an alpine meteorological observatory at Skalnaté Pleso, Slovakia

open access: yesMeteorologische Zeitschrift, 2023
Harmonizing automatic with conventional meteorological measurements is essential to ensure continuity and homogeneity of long-term climate observations when considering the transition from manual (conventional) to automatic measurement regimes.
Veronika Lukasová   +5 more
doaj   +1 more source

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