Results 91 to 100 of about 36,284 (296)
Dirac spectrum of one-flavor QCD at \theta=0 and continuity of the chiral condensate
, 2014 We derive exact analytical expressions for the spectral density of the Dirac operator at fixed \theta-angle in the microscopic domain of one-flavor QCD.
Verbaarschot, J. J. M., Wettig, T.
core +1 more source
Asymptotic properties of cross‐classified sampling designs
Canadian Journal of Statistics, EarlyView.Abstract We investigate the family of cross‐classified sampling designs across an arbitrary number of dimensions. We introduce a variance decomposition that enables the derivation of general asymptotic properties for these designs and the development of straightforward and asymptotically unbiased variance estimators.
Jean Rubin, Guillaume Chauvet
wiley +1 more source
Quenching the Hubbard Model: Comparison of Nonequilibrium Green's Function Methods
Contributions to Plasma Physics, EarlyView.ABSTRACT We benchmark nonequilibrium Green's function (NEGF) approaches for interaction quenches in the half‐filled Fermi–Hubbard model in one and two dimensions. We compare fully self‐consistent two‐time Kadanoff–Baym equations (KBE), the generalized Kadanoff–Baym ansatz (GKBA), and the recently developed NEGF‐based quantum fluctuations approach (NEGF‐
Jan‐Philip Joost +3 more
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Nonlinear relationships between oscillation and asymptotic behavior [PDF]
Pacific Journal of Mathematics, 1982 Edelson, Allan, Kreith, Kurt
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From heaviness to lightness during inflation
, 2004 We study the quantum fluctuations of scalar fields with a variable effective mass during an inflationary phase. We consider the situation where the effective mass depends on a background scalar field, which evolves during inflation from being frozen into
Abramowitz M +17 more
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Resonance‐induced restoration of rock permeability degraded by heavy components of crude oil
Deep Underground Science and Engineering, EarlyView.Resonance‐induced changes occur in filtration properties of sedimentary rocks in crude paraffin oil flow under acoustic vibrations. Experimental data on (a) pressure drop; (b) permeability; (c) pressure at the rock inlet; and (d) pressure at the rock outlet are presented.
Evgenii Riabokon +6 more
wiley +1 more source
Epilepsia Open, EarlyView.Abstract Objective Focal cortical dysplasia (FCD) is a leading cause of drug‐resistant epilepsy and is associated with sleep‐related seizures, yet the underlying electrophysiological mechanisms during different brain states remain poorly understood. We investigated whether fast oscillations (FOs) within the seizure onset zone (SOZ) and irritative zone (
Mohammad F. Khazali +14 more
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When the Tail Wags the Dog: A Time‐Varying FCVAR Analysis of Bitcoin Market
Journal of Futures Markets, EarlyView.ABSTRACT This paper examines how the relationship between Bitcoin spot and futures markets has evolved using a time‐varying Fractionally Cointegrated Vector Autoregressive (FCVAR) model. We are the first to apply this methodology dynamically to cryptocurrency markets, allowing us to simultaneously analyze long‐run equilibrium, pricing patterns, market ...
Filippo di Pietro +2 more
wiley +1 more source
Oscillation and asymptotic behavior for second-order nonlinear perturbed differential equations
Mathematical and Computer Modelling, 2004 The authors deal with second-order perturbed differential equations of the form \[ [r(t)\psi(x(t))x'(t)]'+p(t)x'(t)+Q(t,x(t))=P(t,x(t),x'(t)). \] Using Riccati transformation and averaging technique, new oscillatory criteria are obtained. Criteria for the asymptotics of the forced equation are also established.
Agarwal, R. P., Wang, Qi-Ru
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