Results 21 to 30 of about 8,183 (128)
Remarks on the spherical waves of the Dirac field on de Sitter spacetime
, 2006 The Shishkin's solutions of the Dirac equation in spherical moving frames of the de Sitter spacetime are investigated pointing out the set of commuting operators whose eigenvalues determine the integration constants.
Abramowitz M. +5 more
core +1 more source
Mechanism design for acquisition of/stochastic evidence
Theoretical Economics, Volume 21, Issue 1, Page 99-131, January 2026.We explore two interrelated models of “hard information.” In the evidence‐acquisition model, an agent with private information searches for evidence to show the principal about her type. In the signal‐choice model, a privately informed agent chooses an action generating a random signal whose realization may be correlated with her type.
Elchanan Ben‐Porath +2 more
wiley +1 more source
Ground State Properties of Simple Elements from GW Calculations
, 2009 A novel self-consistent implementation of Hedin's GW perturbation theory is introduced. This finite-temperature method uses Hartree-Fock wave functions to represent Green's function. GW equations are solved with full potential linear augmented plane wave
Andrey Kutepov +4 more
core +1 more source
A new species of Hypericum section Taeniocarpium (Hypericaceae) from Türkiye
Nordic Journal of Botany, Volume 2025, Issue 12, December 2025.A new species, Hypericum aladaglariense, is described and illustrated from Yahyalı, Kayseri Province in Türkiye. The new species belongs to Hypericum sect. Taeniocarpium. It is related to H. linarioides, H. armenum, and H. theodori, which differs by its leaves, bract, bracteole, sepal, and petal features.
Hayri Duman +3 more
wiley +1 more source
Second order parameter-uniform convergence for a finite difference method for a singularly perturbed linear reaction-diffusion system [PDF]
, 2010 A singularly perturbed linear system of second order ordinary differential equations of reaction-diffusion type with given boundary conditions is considered. The leading term of each equation is multiplied by a small positive parameter.
Miller, J. J. H. +2 more
core +2 more sources
A parameter uniform fitted mesh method for a weakly coupled system of two singularly perturbed convection-diffusion equations [PDF]
, 2018 In this paper, a boundary value problem for a singularly perturbed linear system of two second order ordinary differential equations of convection- diffusion type is considered on the interval [0, 1]. The components of the solution of this system exhibit
Kalaiselvan, Saravana Sankar +2 more
core +2 more sources
, 2015 We consider the solution of large linear systems of equations that arise when two-dimensional singularly perturbed reaction-diffusion equations are discretized.
Madden, Niall, Nhan, Thái Anh
core +1 more source
Better Band Gaps with Asymptotically Corrected Local Exchange Potentials [PDF]
, 2016 We formulate a spin-polarized van Leeuwen and Baerends (vLB) correction to the local density approximation (LDA) exchange potential [Phys. Rev. A 49, 2421 (1994)] that enforces the ionization potential (IP) theorem following Stein et al. [Phys. Rev. Lett.
Harbola, Manoj +5 more
core +5 more sources
Equivalence of the Path Integral for Fermions in Cartesian and Spherical Coordinates
, 2013 The path-integral calculation for the free energy of a spin-1/2 Dirac-fermion gas is performed in spherical polar coordinates for a flat spacetime geometry. Its equivalence with the Cartesian-coordinate representation is explicitly established.
Abramowitz M. +11 more
core +1 more source
Food Science &Nutrition, Volume 13, Issue 8, August 2025.The Reynolds stress (RSM) and Discrete phase models (DPM) were used to model the conveying of wheat in the dilute phase. The contours related to the velocity magnitude, static pressure, dynamic pressure, erosion, vorticity magnitude, and turbulence intensity were investigated in four different cross‐section ratios.
Ali Ebadi +3 more
wiley +1 more source