Search results for "lambda"

showing 10 items of 632 documents

Central polynomials and matrix invariants

1996

LetK be a field, charK=0 andM n (K) the algebra ofn×n matrices overK. If λ=(λ1,…,λ m ) andμ=(μ 1,…,μ m ) are partitions ofn 2 let $$\begin{gathered} F^{\lambda ,\mu } = \sum\limits_{\sigma ,\tau \in S_n 2} {\left( {\operatorname{sgn} \sigma \tau } \right)x_\sigma (1) \cdot \cdot \cdot x_\sigma (\lambda _1 )^{y_\tau } (1)^{ \cdot \cdot \cdot } y_\tau (\mu _1 )^{x\sigma } (\lambda _1 + 1)} \hfill \\ \cdot \cdot \cdot x_\sigma (\lambda _1 + \lambda _2 )^{y_\tau } (\mu _1 ^{ + 1} )^{ \cdot \cdot \cdot y_\tau } (\mu _1 + \mu _2 ) \hfill \\ \cdot \cdot \cdot x_\sigma (\lambda _1 + \cdot \cdot \cdot + \lambda _{\mu - 1} ^{ + 1} ) \hfill \\ \cdot \cdot \cdot x_\sigma (n^2 )^{y_\tau } (\mu _1 ^{ + \…

CombinatoricsPolynomialSymmetric groupGeneral MathematicsInvariants of tensorsField (mathematics)Algebra over a fieldLambdaMathematics
researchProduct

Nonlinear Nonhomogeneous Robin Problems with Almost Critical and Partially Concave Reaction

2020

We consider a nonlinear Robin problem driven by a nonhomogeneous differential operator, with reaction which exhibits the competition of two Caratheodory terms. One is parametric, $$(p-1)$$-sublinear with a partially concave nonlinearity near zero. The other is $$(p-1)$$-superlinear and has almost critical growth. Exploiting the special geometry of the problem, we prove a bifurcation-type result, describing the changes in the set of positive solutions as the parameter $$\lambda >0$$ varies.

Competition phenomenacompetition phenomenanonlinear maximum principleAlmost critical growthLambda01 natural sciencesSet (abstract data type)symbols.namesakeMathematics - Analysis of PDEsSettore MAT/05 - Analisi Matematica0103 physical sciencesFOS: Mathematics0101 mathematicsbifurcation-type resultMathematicsParametric statisticsNonlinear regularity35J20 35J60010102 general mathematicsMathematical analysisZero (complex analysis)udc:517.956.2Differential operatorBifurcation-type resultalmost critical growthNonlinear systemDifferential geometryFourier analysissymbolsnonlinear regularity010307 mathematical physicsGeometry and TopologyNonlinear maximum principleStrong comparison principlestrong comparison principleAnalysis of PDEs (math.AP)
researchProduct

Lambda+, the renewal of the Lambda Architecture: Category Theory to the rescue

2021

Designing software architectures for Big Data is a complex task that has to take into consideration multiple parameters, such as the expected functionalities, the properties that are untradeable, or the suitable technologies. Patterns are abstractions that guide the design of architectures to reach the requirements. One of the famous patterns is the Lambda Architecture, which proposes real-time computations with correctness and fault-tolerance guarantees. But the Lambda has also been highly criticized, mostly because of its complexity and because the real-time and correctness properties are each effective in a different layer but not in the overall architecture. Furthermore, its use cases a…

Correctness[INFO.INFO-DB]Computer Science [cs]/Databases [cs.DB]Computer sciencebusiness.industryDistributed computingBig data020207 software engineering02 engineering and technologyLambdaArchitecture patternComputer Science::Hardware ArchitectureSoftware020204 information systems0202 electrical engineering electronic engineering information engineering[INFO.INFO-DB] Computer Science [cs]/Databases [cs.DB]Use caseArchitectureLayer (object-oriented design)Category theorybusinessComputingMilieux_MISCELLANEOUSLambda ArchitectureCategory theory
researchProduct

The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Measuring D_A and H at z=0.57 from the Baryon Acoustic Peak in th…

2014

We present measurements of the angular diameter distance to and Hubble parameter at z = 0.57 from the measurement of the baryon acoustic peak in the correlation of galaxies from the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey. Our analysis is based on a sample from Data Release 9 of 264 283 galaxies over 3275 square degrees in the redshift range 0.43 z DA(0.57) = 1408 ± 45 Mpc and H(0.57) = 92.9 ± 7.8 km s-1 Mpc-1 for our fiducial value of the sound horizon. These results from the anisotropic fitting are fully consistent with the analysis of the spherically averaged acoustic peak position presented in Anderson et al. Our distance measurements are a close match to th…

Cosmology and GravitationCosmology and Nongalactic Astrophysics (astro-ph.CO)Cosmological parametersDark matterLarge scale structure of UniverseFOS: Physical sciencesLambda-CDM modelAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsExpanding universesymbols.namesakeExpansió de l'universObservacions astronòmiquesDark energyQB Astronomyobservations [Cosmology]QCComputingMilieux_MISCELLANEOUSAstrophysics::Galaxy AstrophysicsQB/dk/atira/pure/core/subjects/cosmologyPhysics[PHYS]Physics [physics]Distance scaleCosmologiaAngular diameter distanceFísicaAstronomy and AstrophysicsRedshiftGalaxyCosmologyBaryonQC PhysicsSpace and Planetary ScienceDark energysymbols[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Astrophysics - Cosmology and Nongalactic AstrophysicsHubble's lawAstronomical observations
researchProduct

Testing theories of Gravity and Supergravity with inflation and observations of the cosmic microwave background

2016

Many extensions of Einstein's theory of gravity have been studied and proposed with various motivations like the quest for a quantum theory of gravity to extensions of anomalies in observations at the solar system, galactic and cosmological scales. These extensions include adding higher powers of Ricci curvature $R$, coupling the Ricci curvature with scalar fields and generalized functions of $R$. In addition when viewed from the perspective of Supergravity (SUGRA) many of these theories may originate from the same SUGRA theory interpreted in different frames. SUGRA therefore serves as a good framework for organizing and generalizing theories of gravity beyond General Relativity. All these …

Cosmology and Nongalactic Astrophysics (astro-ph.CO)General relativitymedia_common.quotation_subjectFOS: Physical sciencesLambda-CDM modelCosmological constantAstrophysics::Cosmology and Extragalactic AstrophysicsGeneral Relativity and Quantum Cosmology (gr-qc)CMBSUGRA01 natural sciencesCosmologyGeneral Relativity and Quantum CosmologyMetric expansion of spacesymbols.namesakeTheoretical physicsGeneral Relativity and Quantum CosmologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesPlanckinflation010306 general physicsMathematical Physicsmedia_commonPhysics010308 nuclear & particles physicsAstronomy and AstrophysicsUniverseHigh Energy Physics - PhenomenologySpace and Planetary SciencesymbolsDark energyCMB; inflation; SUGRAAstrophysics - Cosmology and Nongalactic Astrophysics
researchProduct

The nature of Lambda (1405) hyperon resonance in chiral dynamics

2010

10th International Conference on Hypernuclear and Strange Particle Physics. Tokai, JAPAN, SEP 14-18, 2009

CouplingPhysicsNuclear and High Energy PhysicsParticle physicsKaon induced Lambda (1405) productionNuclear TheoryScatteringHadronSpectrum (functional analysis)HyperonStructure of Lambda (1405)FOS: Physical sciencesFísicaResonance (particle physics)Spectral lineNuclear Theory (nucl-th)K(K)over-barN quasibound stateChiral unitary modelHigh Energy Physics::ExperimentInvariant massAtomic physics
researchProduct

Coupling evanescently low loss Silicon-on-insulator ridge waveguides including high Q nanocavities for light control

2011

Summary form only given. In this work, we propose an innovative way to achieve an air-slotted nanocavities by coupling evanescently low loss Silicon-on-insulator (SOI) ridge waveguides(WGs) including high Q nanocavities exhibiting an ultrasmall modal volume V. We first show that coupling two WGs allows us to achieve a field confinement within the air slot as low as lambda/30 while preserving a high group index of the guided modes. Then we demonstrate that merging such coupled WGs with state-of-the-art high-Q/small V nanocavities is a robust way to achieve a single compact (1 µm × 3 µm) air-slotted resonator on substrate. Finally, we extend the concept to multiple air-slotted resonator syste…

CouplingResonatorOpticsMaterials scienceField (physics)Ridge waveguidesbusiness.industryLight controlSilicon on insulatorSubstrate (electronics)businessLambda2011 13th International Conference on Transparent Optical Networks
researchProduct

Caratterizzazione idrologica dei bacini siciliani col metodo del Curve Number

2010

Curve Number perdita iniziale per intercettazione ed invaso superficiale in forma adimensionale (lambda) stagionalità del CNSettore ICAR/02 - Costruzioni Idrauliche E Marittime E IdrologiaSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-Forestali
researchProduct

"Table 1" of "Inclusive Lambda/c production in e+ e- annihilations at s**(1/2) = 10.54-GeV and in Upsilon(4S) decays."

2008

LAMBDA/C+ differential production rate per hadronic event for the continuum at cm energy 10.54 GeV.

DN/DXInclusive10.54Strange productionE+ E- ScatteringE+ E- --> LAMBDA/C+ XHigh Energy Physics::ExperimentUpsilonSingle Differential DistributionNuclear Experiment
researchProduct

"Table 3" of "Inclusive Lambda/c production in e+ e- annihilations at s**(1/2) = 10.54-GeV and in Upsilon(4S) decays."

2008

LAMBDA/C+ differential production rate per UPSILON(4S) decay at cm energy 10.58 GeV.

DN/DXInclusiveE+ E- --> UPSILON(4S) X10.54Strange productionE+ E- ScatteringE+ E- --> LAMBDA/C+ XHigh Energy Physics::ExperimentUpsilonSingle Differential DistributionNuclear Experiment
researchProduct