Results 1 to 10 of about 5,306,168 (294)

The Schwartz Space: Tools for Quantum Mechanics and Infinite Dimensional Analysis

open access: yesMathematics, 2015
An account of the Schwartz space of rapidly decreasing functions as a topological vector space with additional special structures is presented in a manner that provides all the essential background ideas for some areas of quantum mechanics along with ...
Jeremy Becnel, Ambar Sengupta
doaj   +4 more sources

Characterization for Beurling-Björck space and Schwartz space [PDF]

open access: yesProceedings of the American Mathematical Society, 1997
Summary: We give an elementary proof of the equivalence of the original definition of Schwartz and our characterization for the Schwartz space \(\mathcal{S}\). The new proof is based on the Landau inequality concerning the estimates of derivatives. Applying the same method, as an application, we give a better symmetric characterization of the Beurling ...
Chung, Soon-Yeong   +2 more
semanticscholar   +4 more sources

Grothendieck’s inequality in the noncommutative Schwartz space [PDF]

open access: yesStudia Mathematica, 2016
In the spirit of Grothendieck's famous inequality from the theory of Banach spaces, we study a sequence of inequalities for the noncommutative Schwartz space, a Fr chet algebra of smooth operators. These hold in non-optimal form by a simple nuclearity argument. We obtain optimal versions and reformulate the inequalities in several different ways.
Levene, Rupert H., Piszczek, Krzysztof
openaire   +6 more sources

Composition operators on the Schwartz space [PDF]

open access: yesRevista Matemática Iberoamericana, 2018
We study composition operators on the Schwartz space of rapidly decreasing functions. We prove that such a composition operator is never a compact operator and we obtain necessary or sufficient conditions for the range of the composition operator to be closed.
GALBIS VERDU, ANTONIO   +1 more
openaire   +6 more sources

L$_p$-C$^*$-Semi-Inner Product Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2022
This article introduces the notion of L$_p$-C$^*$-semi-inner product space, a generalization of the concept of C$^*$-semi-inner product space  introduced by Gamchi et al., where we consider H\"{o}lder's inequality instead of Cauchy Schwartz' inequality ...
Zakiye Khalili   +3 more
doaj   +1 more source

Neutrosophic Real Inner Product Spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2021
The objective of this work is to define for the first time the concept of inner product in a neutrosophic vector space and a refined neutrosophic vector space.
Mohammad Abobala
doaj   +1 more source

Momentum ray transforms, II: range characterization in the Schwartz space [PDF]

open access: yesInverse Problems, 2019
The momentum ray transform Ik integrates a rank m symmetric tensor field f  over lines of with the weight tk: We give the range characterization for the operator on the Schwartz space of rank m smooth fast decaying tensor fields.
V. Krishnan   +3 more
semanticscholar   +1 more source

On singularity confinement for the pentagram map [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
The pentagram map, introduced by R. Schwartz, is a birational map on the configuration space of polygons in the projective plane. We study the singularities of the iterates of the pentagram map.
Max Glick
doaj   +1 more source

Dynamics and spectra of composition operators on the Schwartz space [PDF]

open access: yesJournal of Functional Analysis, 2017
In this paper we study the dynamics of the composition operators defined in the Schwartz space $\mathcal{S}(\mathbb{R})$ of rapidly decreasing functions.
Carmen Fern'andez, A. Galbis, E. Jord'a
semanticscholar   +1 more source

Schwartz Rounds for Staff in an Australian Tertiary Hospital: Protocol for a Pilot Uncontrolled Trial

open access: yesJMIR Research Protocols, 2022
BackgroundSchwartz Rounds are a unique, organization-wide interdisciplinary intervention aimed at enhancing staff well-being, compassionate care, teamwork, and organizational culture in health care settings.
Tatjana Ewais   +6 more
doaj   +1 more source

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