Search results for "series"

showing 10 items of 1193 documents

Broglie and Young, visionaries who shed light in the polar topology that grounds our reality: a hypothesis

2020

Una observación matemática que relaciona los patrones fractales y la operación de convolución en el contexto del procesamiento de imágenes digitales interrumpió una investigación que nos lleva a plantear la hipótesis de que el concepto de onda de materia (o dualidad onda-partícula) se encuentra en la dicotomía entre el par débil y un topología fuerte en el ámbito del marco de atractores singulares continuos en ninguna parte diferenciables y el concepto de fotón-solitón de Vigier. Tal inferencia parece ser más evidente en la interpretación de Broglie-Bohm de la mecánica cuántica en el cruce de características locales x globales. De esto se deduce también que la relación de los fenómenos natu…

staircase functionsreproducing kernelnormally hyperbolic invariant manifoldsnormal topologyUNESCO::FÍSICAtotal variation filteringconvergence of power seriessmall-divisorssurface of controlevel-set methods:FÍSICA [UNESCO]lebesgue-cantor measurearithmetic physicsinteracting ieldperturbation theory
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Inferring directionality of coupled dynamical systems using Gaussian process priors: Application on neurovascular systems

2022

Dynamical system theory has recently shown promise for uncovering causality and directionality in complex systems, particularly using the method of convergent cross mapping (CCM). In spite of its success in the literature, the presence of process noise raises concern about CCM's ability to uncover coupling direction. Furthermore, CCM's capacity to detect indirect causal links may be challenged in simulated unidrectionally coupled Rossler-Lorenz systems. To overcome these limitations, we propose a method that places a Gaussian process prior on a cross mapping function (named GP-CCM) to impose constraints on local state space neighborhood comparisons. Bayesian posterior likelihood and…

stochastic analysis methodsstatistical physicsneuronal dynamics01 natural sciencesCausality03 medical and health sciencesnonlinear dynamics0302 clinical medicinephase space methodstime series analysis0103 physical sciencesSettore ING-INF/06 - Bioingegneria Elettronica E Informaticabiological physics010306 general physics030217 neurology & neurosurgeryinformation theoryPhysical Review E
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Stability of stochastic nonlinear systems with state-dependent switching

2013

In this paper, the problem of stability on stochastic systems with state-dependent switching is investigated. To analyze properties of the switched system by means of Itô’s formula and Dynkin’s formula, it is critical to show switching instants being stopping times. When the given active-region set can be replaced by its interior, the local solution of the switched system is constructed by defining a series of stopping times as switching instants, and the criteria on global existence and stability of solution are presented by Lyapunov approach. For the case where the active-region set can not be replaced by its interior, the switched systems do not necessarily have solutions, thereby quasi-…

stochastic systemsStability (learning theory)Mathematical proofnonlinear control systemsSet (abstract data type)State-dependent switching; Stochastic systems; Switched systems; Control and Systems Engineering; Computer Science Applications1707 Computer Vision and Pattern Recognition; Electrical and Electronic EngineeringExponential stabilityControl theoryElectrical and Electronic EngineeringSwitched systemsMathematicsLyapunov methodsStochastic systemsSeries (mathematics)Stochastic processApplied MathematicsComputer Science Applications1707 Computer Vision and Pattern Recognitionstate-dependent switchingstabilityComputer Science ApplicationsNonlinear systemControl and Systems EngineeringState dependentswitched systemscontrol system synthesisState-dependent switching
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”Kaikki paha tulee Skandinaviasta” : Sukupuolittuneen ja seksualisoituneen väkivallan affektiivinen poetiikka ja politiikka Nordic noir -televisiosar…

2019

Tarkastelemme artikkelissamme, miten ruotsalainen rikossarja Modus (2015–) rakentaa sukupuolitetun ja seksuaalisen väkivallan kuvauksia sekä poeettisella että poliittisella tasolla. Tulkitsemme väkivaltafiktion kutsumia affekteja suhteessa Sara Ahmedin affektiteoriaan, lajityypin konventioihin, audiovisuaalisen kerronnan keinoihin ja kulttuurisiin normeihin. Väitämme, että Modus mobilisoi affekteja toistamalla ja toisin toistamalla konventionaalisia rikos- ja kauhugenrejen sukupuolittuneita ja seksualisoituneita kuvastoja sekä kulttuurisia sukupuoli- ja seksuaalinormeja. Esittämällä erityisesti homoseksuaaleihin kohdistuvia viharikoksia, sarja kommentoi ajankohtaisia keskusteluja seksuaaliv…

sukupuolittuminenNordic noirkonventiot (taiteet)televisiosarjatväkivaltaviharikoksetrikossarjatseksuaalivähemmistötModus (televisiosarja)Modus (TV series)mediatutkimus
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New Invariant Domain Preserving Finite Volume Schemes for Compressible Flows

2021

We present new invariant domain preserving finite volume schemes for the compressible Euler and Navier–Stokes–Fourier systems. The schemes are entropy stable and preserve positivity of density and internal energy. More importantly, their convergence towards a strong solution of the limit system has been proved rigorously in [9, 11]. We will demonstrate their accuracy and robustness on a series of numerical experiments.

symbols.namesakeEntropy (classical thermodynamics)Finite volume methodSeries (mathematics)Convergence (routing)Euler's formulasymbolsApplied mathematicsLimit (mathematics)Invariant (mathematics)Domain (mathematical analysis)Mathematics
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On Taylor coefficients of entire functions integrable against exponential weights

2001

symbols.namesakeIntegrable systemGeneral MathematicsEntire functionMathematical analysisTaylor seriessymbolsTaylor coefficientsExponential functionMathematics
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Spectral Asymptotics for More General Operators in One Dimension

2019

In this chapter, we generalize the results of Chap. 3. The results and the main ideas are close, but not identical, to the ones of Hager (Ann Henri Poincare 7(6):1035–1064, 2006). We will use some h-pseudodifferential machinery, see for instance Dimassi and Sjostrand (Spectral Asymptotics in the Semi-classical Limit, London Mathematical Society Lecture Note Series, vol 268. Cambridge University Press, Cambridge, 1999).

symbols.namesakePure mathematicsDimension (vector space)Series (mathematics)Mathematical societyPoincaré conjecturesymbolsLimit (mathematics)Mathematics
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Isometries between spaces of multiple Dirichlet series

2019

Abstract In this paper we study spaces of multiple Dirichlet series and their properties. We set the ground of the theory of multiple Dirichlet series and define the spaces H ∞ ( C + k ) , k ∈ N , of convergent and bounded multiple Dirichlet series on C + k . We give a representation for these Banach spaces and prove that they are all isometrically isomorphic, independently of the dimension. The analogous result for A ( C + k ) , k ∈ N , which are the spaces of multiple Dirichlet series that are convergent on C + k and define uniformly continuous functions, is obtained.

symbols.namesakePure mathematicsUniform continuityApplied MathematicsBounded functionDimension (graph theory)symbolsBanach spaceRepresentation (mathematics)AnalysisDirichlet seriesMathematicsJournal of Mathematical Analysis and Applications
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Characterization of synthetic Fe-Mg silicate spinels in the gamma-(Mgx,Fe1-x)2SiO4 series by means of single crystal XRD (x=0,0.4,0.5)

2009

synthetic Fe-Mg silicate spinels gamma-(MgxFe1-x)2SiO4 series single crystal XRD
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Bailiaspis (Trilobita) with English affinities from the Mansilla Formation (Cambrian Series 3 of the Iberian Chains; NE Spain)

2020

A new study of the trilobite record in the Mansilla Formation (Iberian Chains, NE Spain) has led to the discovery of the presence of Bailiaspis aff. tuberculata, B. cf. tuberculata and Bailiaspis sp., the first certain citation of this genus in the Mediterranean subprovince. The age of the findings extends from Eccaparadoxides asturianus Zone (upper Leonian) to the lowermost Badulesia tenera Zone (lower Caesaraugustan), which correspond to the upper part of Stage 5 of Cambrian Series 3 and, probably, the lowermost Drumian. The specimens show the cranidial anterior border expanding backwards, forming a plectrum that is characteristic of Bailiaspis. The main characters of the three taxa inclu…

systematic trilobites cambrian stage 5 lowermost drumian (cambrian series 3) biostratigraphybiologyCambrian Series 3PaleontologyBiostratigraphyCambrian Stage 5biology.organism_classificationQE701-760TrilobitePaleontologyTaxonGeographyStage (stratigraphy)GenusPtychagnostusSpanish Journal of Palaeontology
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