0000000000379953

AUTHOR

Maria Stella Adamo

0000-0002-9781-016x

showing 5 related works from this author

Unbounded derivations and *-automorphisms groups of Banach quasi *-algebras

2018

This paper is devoted to the study of unbounded derivations on Banach quasi *-algebras with a particular emphasis to the case when they are infinitesimal generators of one parameter automorphisms groups. Both of them, derivations and automorphisms are considered in a weak sense; i.e., with the use of a certain families of bounded sesquilinear forms. Conditions for a weak *-derivation to be the generator of a *-automorphisms group are given.

Unbounded derivationPure mathematicsAutomorphisms groups and their infinitesimal generatorsInfinitesimalBanach quasi *-algebra01 natural sciencesMathematics::Group Theory*-Automorphisms groups and their infinitesimal generatorSettore MAT/05 - Analisi Matematica0103 physical sciencesFOS: MathematicsAutomorphisms groups and their infinitesimal generators; Banach quasi; Integrability of derivation; Unbounded derivations; Automorphisms groups and their infinitesimal generators; Banach quasi; Integrability of derivation; Unbounded derivationsBanach quasi0101 mathematicsOperator Algebras (math.OA)MathematicsGroup (mathematics)Applied Mathematics010102 general mathematicsIntegrability of derivationMathematics - Operator AlgebrasAutomorphismUnbounded derivationsFunctional Analysis (math.FA)Mathematics - Functional AnalysisBounded function010307 mathematical physicsGenerator (mathematics)
researchProduct

Fixed point and homotopy results for mixed multi-valued mappings in 0-complete partial metric spaces*

2015

We give sufficient conditions for the existence of common fixed points for a pair of mixed multi-valued mappings in the setting of 0-complete partial metric spaces. An example is given to demonstrate the usefulness of our results over the existing results in metric spaces. Finally, we prove a homotopy theorem via fixed point results.

Discrete mathematicsHomotopy categoryPartial metric spacefixed pointsApplied MathematicsInjective metric spacepartial metric spaceslcsh:QA299.6-433multi-valued mappingslcsh:AnalysisFixed pointFixed-point propertyIntrinsic metricConvex metric spacen-connectedMetric spaceSettore MAT/05 - Analisi Matematicamulti-valued mappingMetric (mathematics)AnalysisMathematics
researchProduct

WHATSAPP MESSENGER AS A REAL-TIME TOOL FOR A LONG-DISTANCE ACTIVITY OF A MULTIDISCIPLINARY

2017

Multidisciplinarity Whats AppSettore MED/24 - Urologia
researchProduct

Representable and Continuous Functionals on Banach Quasi *-Algebras

2017

In the study of locally convex quasi *-algebras an important role is played by representable linear functionals; i.e., functionals which allow a GNS-construction. This paper is mainly devoted to the study of the continuity of representable functionals in Banach and Hilbert quasi *-algebras. Some other concepts related to representable functionals (full-representability, *-semisimplicity, etc) are revisited in these special cases. In particular, in the case of Hilbert quasi *-algebras, which are shown to be fully representable, the existence of a 1-1 correspondence between positive, bounded elements (defined in an appropriate way) and continuous representable functionals is proved.

Banach quasi *-algebraGeneral MathematicsHilbert quasi01 natural sciencesRepresentable functionalsAutomatic continuity of representable functional0103 physical sciencesFOS: MathematicsMathematics (all)Banach quasi0101 mathematicsOperator Algebras (math.OA)MathematicsDiscrete mathematics010102 general mathematicsMathematics - Operator AlgebrasRegular polygonAutomatic continuity of representable functionalsFunctional Analysis (math.FA)Mathematics - Functional AnalysisAutomatic continuity of representable functionals; Banach quasi; Hilbert quasi; Representable functionals; MathematicsRepresentable functionalBounded functionHilbert quasi *-algebra010307 mathematical physicsMathematicsMediterranean Journal of Mathematics
researchProduct

Italian cancer figures, report 2013: Multiple tumours

2013

This collaborative study, based on data collected by the network of Italian association of cancer registries (AIRTUM), provides updated estimates on the incidence risk of multiple primary cancer (MP). The objective is to highlight and quantify the bidirectional associations between different oncological diseases. The quantification of the excess or decreased risk of further cancers in cancer patients, in comparison with the general population, may contribute to understand the aetiology of cancer and to address clinical follow-up.Data herein presented were provided by AIRTUM population-based cancer registries, which cover nowadays 48% of the Italian population. This monograph utilizes the AI…

AdultMaleData Interpretationcancer incidenceAdolescentEpidemiologySettore MED/42 - Igiene Generale E ApplicataNeoplasms Multiple PrimaryCohort StudiesYoung AdultMultiple PrimaryRisk FactorsNeoplasms80 and overHumansChildPreschoolAgedRetrospective StudiesAged 80 and overIncidenceEnvironmental and Occupational Healthmultiple tumourInfantNeoplasms Second Primaryitalian cancer; multiple tumours; cancer incidenceStatisticalMiddle Ageditalian cancerMultiple primary cancer incidenceAdolescent; Adult; Aged; Aged 80 and over; Child; Child Preschool; Cohort Studies; Data Interpretation Statistical; Female; Humans; Incidence; Infant; Italy; Male; Middle Aged; Neoplasms Multiple Primary; Neoplasms Second Primary; Retrospective Studies; Risk Factors; Young AdultSecond PrimaryItalyChild PreschoolData Interpretation StatisticalEpidemiology; Public Health Environmental and Occupational HealthFemalePublic Health
researchProduct