Search results for "PROB"

showing 10 items of 8859 documents

Optimal retraction problem for proper $k$-ball-contractive mappings in $C^m [0,1]$

2019

In this paper for any $\varepsilon >0$ we construct a new proper $k$-ball-contractive retraction of the closed unit ball of the Banach space $C^m [0,1]$ onto its boundary with $k < 1+ \varepsilon$, so that the Wośko constant $W_\gamma (C^m [0,1])$ is equal to $1$.

Unit spherePure mathematicsmeasure of noncompactneSettore MAT/05 - Analisi MatematicaApplied MathematicsBanach spaceRetraction ProblemBall (mathematics)proper mappingAnalysisRetractionMathematicsTopological Methods in Nonlinear Analysis
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Solutions to the 1-harmonic flow with values into a hyper-octant of the N-sphere

2013

Abstract We announce existence results for the 1-harmonic flow from a domain of R m into the first hyper-octant of the N -dimensional unit sphere, under homogeneous Neumann boundary conditions. The arguments rely on a notion of “geodesic representative” of a BV-vector field on its jump set.

Unit spheren-sphereGeodesicApplied MathematicsMathematical analysisA domainharmonic flowsOctant (solid geometry)non-convex variational problems1-harmonic flowlower semi-continuity and relaxation; total variation flow; 1-harmonic flow; non-convex variational problems; image processing; geodesic; partial differential equations; harmonic flowsimage processingHomogeneoustotal variation flowNeumann boundary conditionJumppartial differential equationslower semi-continuity and relaxationgeodesicMathematics
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THE 1-HARMONIC FLOW WITH VALUES IN A HYPEROCTANT OF THE N-SPHERE

2014

We prove the existence of solutions to the 1-harmonic flow — that is, the formal gradient flow of the total variation of a vector field with respect to the [math] -distance — from a domain of [math] into a hyperoctant of the [math] -dimensional unit sphere, [math] , under homogeneous Neumann boundary conditions. In particular, we characterize the lower-order term appearing in the Euler–Lagrange formulation in terms of the “geodesic representative” of a BV-director field on its jump set. Such characterization relies on a lower semicontinuity argument which leads to a nontrivial and nonconvex minimization problem: to find a shortest path between two points on [math] with respect to a metric w…

Unit spherenonconvex variational problemsriemannian manifolds with boundaryGeodesicn-sphereharmonic flows68U1053C2253C4435K9235K67Neumann boundary conditionpartial differential equations49J45MathematicsNumerical Analysisnonlinear parabolic systems; lower semicontinuity and relaxation; total variation flow; 1-harmonic flow; image processing; harmonic flows; partial differential equations; image processing.; geodesics; riemannian manifolds with boundary; nonconvex variational problemslower semicontinuity and relaxation58E20Applied MathematicsMathematical analysis49Q201-harmonic flowimage processingFlow (mathematics)35K55Metric (mathematics)total variation flowVector fieldnonlinear parabolic systemsBalanced flowAnalysisgeodesics
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Study on the Linezolid Prescription According to the Approval of Indication in a University Hospital.

2015

Indications for linezolid use are nosocomial or community-acquired pneumonia and skin infections or soft tissue infection caused by gram-positive microorganisms, but new recommendations may emerge. It is important to balance benefits with risks because severe adverse events have been described in patients taking linezolid treatment. Accordingly, we evaluated the suitability of linezolid prescription according to approval of indication by evaluating the presence of drug-related problems (DRP) in a University hospital. DRP were identified in 36 patients (50.0%). In most cases, they were related to known or established indications (15 patients, 20.8%), to safety (5 patients, 6.9%), and to both…

University hospitalDrug safety evaluationLinezolid prescriptionApproval of indicationsOriginal ArticleDrug-related problemsIranian journal of pharmaceutical research : IJPR
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Non-periodic Discrete Splines

2015

Discrete Splines with different spans were introduced in Sect. 3.3.1. This chapter focuses on a special case of discrete splines whose spans are powers of 2. These splines are discussed in more detail. The Zak transform provides an integral representation of such splines. Discrete exponential splines are introduced. Generators of the discrete-spline spaces are described whose properties are similar to properties of polynomial-spline spaces generators. Interpolating discrete splines provide efficient tools for upsampling 1D and 2D signals. An algorithm for explicit computation of discrete splines is described.

UpsamplingComputer Science::GraphicsIntegral representationCharacteristic function (probability theory)ComputationZak transformApplied mathematicsSpecial caseInfinite impulse responseFourier seriesMathematics::Numerical AnalysisMathematics
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Urban runoff modelling uncertainty: Comparison among Bayesian and pseudo-Bayesian methods

2009

Urban stormwater quality modelling plays a central role in evaluation of the quality of the receiving water body. However, the complexity of the physical processes that must be simulated and the limited amount of data available for calibration may lead to high uncertainty in the model results. This study was conducted to assess modelling uncertainty associated with catchment surface pollution evaluation. Eight models were compared based on the results of a case study in which there was limited data available for calibration. Uncertainty analysis was then conducted using three different methods: the Bayesian Monte Carlo method, the GLUE pseudo-Bayesian method and the GLUE method revised by m…

Urban stormwater modellingEnvironmental EngineeringSettore ICAR/03 - Ingegneria Sanitaria-AmbientaleCalibration (statistics)Computer scienceEcological ModelingSettore ICAR/02 - Costruzioni Idrauliche E Marittime E IdrologiaBayesian probabilityMonte Carlo methodBayesian methodGeneralised Likelihood Uncertainty EstimationStatisticsUncertainty assessmentSensitivity analysisSurface runoffGLUESoftwareReliability (statistics)Uncertainty analysisEnvironmental Modelling &amp; Software
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Quality of wind speed fitting distributions for the urban area of Palermo, Italy

2011

Abstract This study investigates the wind speed characteristics recorded in the urban area of Palermo, in the south of Italy, by a monitoring network composed by four weather stations. This article has two main objectives: the first one, to describe with clarity and simplicity the numerical procedures adopted to perform a preliminary statistical analysis of wind speed data, providing at the same time, the necessary mathematical tools useful to perform this analysis also without special software. The second objective is to verify if there are more suitable probability distributions able to better represent the original data respect the traditional ones. After a preliminary statistical analys…

Urban wind speed distributionSettore ING-IND/11 - Fisica Tecnica AmbientaleBurr distributionRenewable Energy Sustainability and the EnvironmentRayleigh distributionProbability density functionWind speedBurr distributionInverse Gaussian distributionsymbols.namesakeStatisticsMaximum likelihood methodsymbolsGamma distributionProbability distributionWeibull distributionMathematicsWeibull distributionRenewable Energy
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Uzturlīdzekļu tiesiskās regulējuma problēmjautājumi teorijā un praksē

2018

Autores bakalaura darba tēma ir „Uzturlīdzekļu tiesiskā regulējuma problēmjautājumi teorijā un praksē”, kas ir tieši saistīta ar ģimenes locekļu atbildību vienam pret otru un pienākumu normatīvajos aktos noteiktajā gadījumā dot uzturlīdzekļus. Jānorāda, ka vecāki ne vienmēr spēj vienoties, kurš uzņemsies finansiālo atbildību par bērna uzturēšanu. Strīdus par uzturlīdzekļiem bērnam izšķir tiesa. Pienākums gādāt par bērna uzturēšanu neizbeidzas, ja bērns ir šķirts no ģimenes vai nedzīvo kopā ar vienu no vecākiem vai abiem vecākiem. Civillikumā ir paredzēts uzturlīdzekļu došanas pienākums ne tikai bērniem, bet arī laulātajam, šķirtajam laulātajam, bērniem, vecākiem, mazbērniem, vecvecākiem, ad…

Uzturlīdzekļu tiesiskais regulējumsProblēmjautājumiUzturlīdzekļu garantiju fondsAtbildība pret bērnuUzturlīdzekļiJuridiskā zinātne
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"Table 208" of "Measurement of the correlation between flow harmonics of different order in lead-lead collisions at $\sqrt{s_{NN}}$=2.76 TeV with the…

2015

RMS eccentricity scaled v_n.

V2InclusiveMathematics::CombinatoricsMathematics::Probability2760.0Physics::Accelerator PhysicsComputer Science::Symbolic ComputationAstrophysics::Earth and Planetary AstrophysicsPB PB --&gt; CHARGED X
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"Table 207" of "Measurement of the correlation between flow harmonics of different order in lead-lead collisions at $\sqrt{s_{NN}}$=2.76 TeV with the…

2015

RMS eccentricity scaled v_n.

V2InclusiveMathematics::CombinatoricsMathematics::Probability2760.0Physics::Accelerator PhysicsComputer Science::Symbolic ComputationAstrophysics::Earth and Planetary AstrophysicsPB PB --&gt; CHARGED X
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