Results 41 to 50 of about 14,038,334 (310)
Advances in Difference Equations, 2019 In this paper, a class of mixed nonlinear impulsive differential equations is studied. When the delay σ(t) $\sigma(t)$ is variable, each given interval is divided into two parts on which the quotients of x(t−σ(t)) $x(t-\sigma(t))$ and x(t) $x(t)$ are ...
Xiaoliang Zhou +2 more
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Kappa-symmetry of superstring sigma model and generalized 10d supergravity equations [PDF]
, 2016 A bstractWe determine the constraints imposed on the 10d target superspace geometry by the requirement of classical kappa-symmetry of the Green-Schwarz superstring.
A. Tseytlin, L. Wulff
semanticscholar +1 more source
Asymptotic properties of eigenmatrices of a large sample covariance matrix
, 2011 Let $S_n=\frac{1}{n}X_nX_n^*$ where $X_n=\{X_{ij}\}$ is a $p\times n$ matrix with i.i.d. complex standardized entries having finite fourth moments. Let $Y_n(\mathbf {t}_1,\mathbf {t}_2,\sigma)=\sqrt{p}({\mathbf {x}}_n(\mathbf {t}_1)^*(S_n+\sigma I)^{-1}{\
Bai, Z. D., Liu, H. X., Wong, W. K.
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Slowdown in branching Brownian motion with inhomogeneous variance [PDF]
, 2015 We consider a model of Branching Brownian Motion with time-inhomogeneous variance of the form \sigma(t/T), where \sigma is a strictly decreasing function.
Maillard, Pascal, Zeitouni, Ofer
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First-Matsubara-frequency rule in a Fermi liquid. Part I: Fermionic self-energy
, 2012 We analyze in detail the fermionic self-energy \Sigma(\omega, T) in a Fermi liquid (FL) at finite temperature T and frequency \omega. We consider both canonical FLs -- systems in spatial dimension D >2, where the leading term in the fermionic self-energy
A. A. Abrikosov +8 more
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Universal Jamming Phase Diagram in the Hard-Sphere Limit [PDF]
, 2010 We present a new formulation of the jamming phase diagram for a class of glass-forming fluids consisting of spheres interacting via finite-ranged repulsions at temperature $T$, packing fraction $\phi$ or pressure $p$, and applied shear stress $\Sigma ...
Haxton, Thomas K. +2 more
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The exceptional sigma model [PDF]
, 2018 A bstractWe detail the construction of the exceptional sigma model, which describes a string propagating in the “extended spacetime” of exceptional field theory. This is to U-duality as the doubled sigma model is to T-duality.
Alex S. Arvanitakis, Chris D. A. Blair
semanticscholar +1 more source
Projected transverse momentum resummation in top-antitop pair production at LHC
Journal of High Energy Physics, 2023 The transverse momentum distribution of the t t ¯ $$ t\overline{t} $$ system is of both experimental and theoretical interest. In the presence of azimuthally asymmetric divergences, pursuing resummation at high logarithmic precision is rather demanding ...
Wan-Li Ju, Marek Schönherr
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, 2004 The high frequency limits of the singular component $A(\omega)$ of the small wavevector expansion of the longitudinal (L) and transverse (T) components of the spin-resolved exchange-correlation kernel tensor $f_{xc,\sigma \sigma'}^{L,T}(q,\omega)=-v(q)G_{
Qian, Zhixin
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Scientific Reports, 2019 Methamphetamine (Meth) exacerbates HIV-1 pathobiology by increasing virus transmission and replication and accelerating clinical progression to AIDS.
A. Prasad +5 more
semanticscholar +1 more source