نتایج جستجو برای: scalar sign function
تعداد نتایج: 1299904 فیلتر نتایج به سال:
In this paper, the equation of motion for an incompressible transversely isotropic fibre-reinforced elastic solid is derived in terms of a scalar function. The general solution of the equation of motion is obtained, which satisfies the required radiation condition. The appropriate traction free boundary conditions are also satisfied by the solution to obtain the required secular equation for...
Conditional branches are expensive. Branches require a signi cant percentage of execution cycles since they occur frequently and cause pipeline ushes when mispredicted. In addition, branches result in forks in the control ow, which can prevent other code-improving transformations from being applied. In this paper we describe pro le-based techniques for replacing the execution of a set of two or...
An inert dynamically passive scalar in a constant density fluid forced by a statistically homogeneous field of turbulence has been investigated using the results of a 256(3) grid direct numerical simulation. Mixing characteristics are characterized in terms of either principal curvatures or mean and Gauss curvatures. The most probable small-scale scalar geometries are flat and tilelike isosurfa...
In this paper, we examine the singlet scalar dark matter annihilation to becoming the Standard Model particles in the non-commutative space. In the recent decades, many candidates of dark matter have been offered, but our information about the nature of dark matter is still limited. There are such particle candidates as scalar matetr, fermion, boson, gauge boson, etc.; however, they have nei...
for a given riemannian manifold (m,g),it is an interesting question to study the existence of a conformal diffemorphism (also called as a conformal transformation) f : m ! m such that the metric g? = fg has one of the following properties: (i)(m; g?) has constant scalar curvature. (ii)(m; g?) is an einstein manifold.
a saddle point variational (spv ) method was applied to the dirac equation as an example of a fully relativistic equation with both negative and positive energy solutions. the effect of the negative energy states was mitigated by maximizing the energy with respect to a relevant parameter while at the same time minimizing it with respect to another parameter in the wave function. the cornell pot...
We study the ground state properties of Hubbard model on three-leg triangular cylinders using large-scale density-matrix renormalization group simulations. At half-filling, we identify an intermediate gapless spin liquid phase between a metallic at weak coupling and Mott insulating dimer strong interaction, which has one mode algebraic spin-spin correlations but exponential decay scalar chiral-...
In the framework of Einstein-Maxwell-scalar theory, we studied scalar field perturbations Reissner-Nordström-Melvin (RNM) black holes, which describes RN holes immersed in a uniform magnetic field. Due to coupling Maxwell term, acquires an effective mass square which, presence field, will become negative somewhere outside horizon for either sign constant α, thus triggering tachyonic instability...
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