Results 31 to 40 of about 374,962 (187)

New estimations for the Berezin number inequality

open access: yesJournal of Inequalities and Applications, 2020
In this paper, by the definition of Berezin number, we present some inequalities involving the operator geometric mean. For instance, it is shown that if X , Y , Z ∈ L ( H ) $X, Y, Z\in {\mathcal{L}}(\mathcal{H})$ such that X and Y are positive operators,
Mojtaba Bakherad, Ulas Yamancı
doaj   +1 more source

Mobilizing the Past in Revolutionary Times: Memory, Counter‐Memory, and Nostalgia During the Lebanese Uprising

open access: yesSociological Forum, Volume 37, Issue S1, Page 1387-1413, December 2022., 2022
Social movement studies have addressed the issue of nostalgia within two perspectives, focusing, respectively, on emotions and on memory. Our contribution looks at nostalgia in social movements by building upon the combination of these two streams in social movement studies.
Donatella della Porta, Rossana Tufaro
wiley   +1 more source

Some Berezin Number Inequalities for Operator Matrices [PDF]

open access: yesCzechoslovak Mathematical Journal, 2018
The Berezin symbol à of an operator A acting on the reproducing kernel Hilbert space $$\mathcal{H}=\mathcal{H}(\Omega)$$H=H(Ω) over some (nonempty) set is defined by $$\tilde A(\lambda ) = \left\langle {A\hat k_\lambda ,\hat k_\lambda } \right\rangle ...
M. Bakherad
semanticscholar   +2 more sources

Increasing the scope of the resazurin‐resorufin smart tracer system in hydrologic and biogeochemical sciences: The effects of storage duration and temperature on preservation

open access: yesLimnology and Oceanography: Methods, Volume 20, Issue 11, Page 701-709, November 2022., 2022
Abstract The resazurin (raz)‐resorufin (rru) smart tracer system has led to significant advances in hydrologic and biogeochemical sciences but its application has been limited in scope and geography by the short duration that it has been assumed samples can be reliably stored before analysis.
Ben Christopher Howard   +4 more
wiley   +1 more source

Berezin number inequalities in terms of Specht's

open access: yesEl-Cezeri Fen ve Mühendislik Dergisi, 2022
Smooth functions are associated with operators on Hilbert spaces of analytic functions through the Berezin transform. The Berezin symbol and the Berezin number of an operator A on the Hilbert functional space H(Ω) over some set Ω with the reproducing ...
M. Gürdal, Hamdullah Başaran
semanticscholar   +1 more source

Na+ homeostasis in Acinetobacter baumannii is facilitated via the activity of the Mrp antiporter

open access: yesEnvironmental Microbiology, Volume 24, Issue 9, Page 4411-4424, September 2022., 2022
Summary The human opportunistic pathogen Acinetobacter baumannii is a global threat to healthcare institutions worldwide, since it developed very efficient strategies to evade host defence and to adapt to the different environmental conditions of the host. This work focused on the importance of Na+ homeostasis in A.
Josephine Joy Hubloher   +2 more
wiley   +1 more source

Boundedness and Compactness of Hankel Operators on Large Fock Space

open access: yesJournal of Function Spaces, Volume 2022, Issue 1, 2022., 2022
We introduce the BMO spaces and use them to characterize complex‐valued functions f such that the big Hankel operators Hf and Hf¯ are both bounded or compact from a weighted large Fock space Fp(ϕ) into a weighted Lebesgue space Lp(ϕ) when 1 ≤ p < ∞.
Xiaofeng Wang   +2 more
wiley   +1 more source

Multiplication Operator with BMO Symbols and Berezin Transform [PDF]

open access: yesJournal of Function Spaces, 2015
We discuss multiplication operator with a special symbol on the weighted Bergman space of the unit ball. We give the necessary and sufficient conditions for the compactness of multiplication operator on the weighted Bergman space of the unit ball.
Xue Feng   +4 more
openaire   +2 more sources

Is Populism Bad For Business? Assessing The Reputational Effect Of Populist Incumbents

open access: yesSwiss Political Science Review, Volume 27, Issue 1, Page 1-20, March 2021., 2021
Abstract This article seeks to assess whether populist incumbents affect their country’s perceived political stability and business climate. Existing evidence contends that populist governments in European democracies produce more moderate policy outcomes than their agendas would suggest.
Luís de Sousa   +2 more
wiley   +1 more source

Charisma and communities of feeling

open access: yesNations and Nationalism, Volume 27, Issue 1, Page 130-147, January 2021., 2021
Abstract Theories of nations and nationalism have serious problems when dealing with the concept of charisma. Besides frequent conceptual confusion, the concept of charisma is predominantly observed from either the structuralist position or the perspective of psychological reductionism. Charisma is so often sought in the properties of an office, within
Gordana Uzelac
wiley   +1 more source

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