Results 11 to 20 of about 424,711 (307)
Critical Metrics and Covering Number [PDF]
In both quantum computing and black hole physics, it is natural to regard some deformations, infinitesimal unitaries, as \emph{easy} and others as \emph{hard}. This has lead to a renewed examination of right-invariant metrics on $\operatorname{SU}(2^N)$. It has been hypothesized that there is a critical such metric -- in the sense of phase transitions -
Freedman, Mike
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On the existence of critical compatible metrics on contact 3‐manifolds [PDF]
AbstractWe disprove the generalized Chern–Hamilton conjecture on the existence of critical compatible metrics on contact 3‐manifolds. More precisely, we show that a contact 3‐manifold admits a critical compatible metric for the Chern–Hamilton energy functional if and only if it is Sasakian or its associated Reeb flow is ‐conjugate to an algebraic ...
Y. Mitsumatsu +2 more
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Homogeneous and curvature homogeneous Lorentzian critical metrics [PDF]
We determine all three-dimensional homogeneous and 1 -curvature homogeneous Lorentzian metrics which are critical for a quadratic curvature functional.
Brozos-Vázquez, Miguel +5 more
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A Cross-Sectional Study of the Clinical Metrics of Functional Status Tools in Pediatric Critical Illness [PDF]
OBJECTIVES: To determine the clinical metrics of functional assessments in pediatric critical illness survivors. DESIGN: Cross-sectional observational study. SETTING: PICU follow-up clinic.
Puthucheary, ZA +11 more
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Curvature homogeneous critical metrics in dimension three [PDF]
Accepted manuscript[Abstract] We study curvature homogeneous three-manifolds modeled on a symmetric space which are critical for some quadratic curvature functional.
Brozos-Vázquez, Miguel +2 more
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The precursor to an industrial software metrics program [PDF]
A common reason for why software metric programs dasiafailpsila is through lack of participant support and commitment. In this paper, we describe the results of a study which examined the knowledge that subjects had and the opinions they had formed of ...
Lycett, M +9 more
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Scene-Dependency of Spatial Image Quality Metrics [PDF]
This thesis is concerned with the measurement of spatial imaging performance and the modelling of spatial image quality in digital capturing systems. Spatial imaging performance and image quality relate to the objective and subjective reproduction of ...
Fry, E.
core +1 more source
Critical metrics for quadratic curvature functionals on some solvmanifolds [PDF]
We prove the existence of four-dimensional compact manifolds admitting some non-Einstein Lorentzian metrics, which are critical points for all quadratic curvature functionals.
Giovanni Calvaruso, Amirhesam Zaeim
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Background The mortality rate for a patient with a refractory cardiogenic shock on venoarterial (VA) extracorporeal membrane oxygenation (ECMO) remains high, and hyperoxia might worsen this prognosis.
Mouhamed Djahoum Moussa +20 more
doaj +1 more source
Complex Deformation of Critical Kähler Metrics [PDF]
In this paper, we use Pacard-Xu's methods to discuss the complex deformation of constant scalar curvature metrics in the case of fixed and varying complex structures. Moreover, we also discuss the complex deformation of Kähler Ricci solitons.
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