Results 21 to 30 of about 354 (59)

OpenMP GNU and Intel Fortran programs for solving the time-dependent Gross-Pitaevskii equation [PDF]

, 2017
We present Open Multi-Processing (OpenMP) version of Fortran 90 programs for solving the Gross-Pitaevskii (GP) equation for a Bose-Einstein condensate in one, two, and three spatial dimensions, optimized for use with GNU and Intel compilers.
Adhikari, Sadhan K., Balaz, Antun, Loncar, Vladimir, Muruganandam, Paulsamy, Vudragovic, Dusan, Young-S., Luis E.   +5 more
core   +3 more sources

Unification of all hyperbolic tangent function methods

Open Physics, 2016
Over the last twenty years, several “different” hyperbolic tangent function methods have been proposed to search solutions for nonlinear partial differential equations (NPDEs).
Gözükızıl Ömer Faruk, Akçağıl Şamil, Aydemir Tuğba   +2 more
doaj   +1 more source

On the Absence of Spurious Eigenstates in an Iterative Algorithm Proposed By Waxman

, 2006
We discuss a remarkable property of an iterative algorithm for eigenvalue problems recently advanced by Waxman that constitutes a clear advantage over other iterative procedures.
A R Plastino, H G Miller, Haydock R, Lanczos C, R A Andrew, Waxman D   +5 more
core   +1 more source

Sudden Collapse of a Granular Cluster [PDF]

, 2002
Single clusters in a vibro-fluidized granular gas in N connected compartments become unstable at strong shaking. They are experimentally shown to collapse very abruptly.
A. Kudrolli, D. van der Meer, Detlef Lohse, Devaraj van der Meer, G. Barenblatt, G. Barenblatt, H. Jaeger, I. Goldhirsch, J. Eggers, K. van der Weele, Ko van der Weele, L. Kadanoff, L. Landau, S. McNamara, T. Witelski, Y. Du   +15 more
core   +4 more sources

Oscillation criteria for nonlinear fractional differential equation with damping term

Open Physics, 2016
In this paper, we study the oscillation of solutions to a non-linear fractional differential equation with damping term. The fractional derivative is defined in the sense of the modified Riemann-Liouville derivative. By using a variable transformation, a
Bayram Mustafa, Adiguzel Hakan, Secer Aydin   +2 more
doaj   +1 more source

Approximate solutions to the nonlinear Klein-Gordon equation in de Sitter spacetime

Open Physics, 2016
We consider initial value problems for the nonlinear Klein-Gordon equation in de Sitter spacetime. We use the differential transform method for the solution of the initial value problem.
Yazici Muhammet, Şengül Süleyman
doaj   +1 more source

An Effective Schema for Solving Some Nonlinear Partial Differential Equation Arising In Nonlinear Physics

Open Physics, 2015
In this paper, a new computational algorithm called the "Improved Bernoulli sub-equation function method" has been proposed. This algorithm is based on the Bernoulli Sub-ODE method.
Baskonus Haci Mehmet, Bulut Hasan
doaj   +1 more source

Effects of geometric anisotropy on local field distribution: Ewald-Kornfeld formulation

, 2001
We have applied the Ewald-Kornfeld formulation to a tetragonal lattice of point dipoles, in an attempt to examine the effects of geometric anisotropy on the local field distribution.
, , , Allen M, Ashcroft N W, Bottcher C J F, Bottcher C J F, C K Lo, Ewald P P, J T K Wan, K W Yu, Kornfeld H, Kornfeld H, Lorentz H A, Onsager L, Reitz J R, Yuen K P   +16 more
core   +1 more source

Algebraic aspects of evolution partial differential equation arising in the study of constant elasticity of variance model from financial mathematics

Open Physics, 2018
The optimal investment-consumption problem under the constant elasticity of variance (CEV) model is investigated from the perspective of Lie group analysis. The Lie symmetry group of the evolution partial differential equation describing the CEV model is
Motsepa Tanki, Aziz Taha, Fatima Aeeman, Khalique Chaudry Masood   +3 more
doaj   +1 more source

Dual PT-Symmetric Quantum Field Theories

, 2005
Some quantum field theories described by non-Hermitian Hamiltonians are investigated. It is shown that for the case of a free fermion field theory with a $\gamma_5$ mass term the Hamiltonian is $\cal PT$-symmetric.
Abdalla, Bender, Bender, Bender, Bender, Bender, Bender, Bender, Bender, Bender, Bender, Carl M. Bender, Dorey, Dorey, Fernández, H.F. Jones, Mostafazadeh, Mostafazadeh, R.J. Rivers   +18 more
core   +1 more source