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SPARSIFYING PRECONDITIONER FOR PSEUDOSPECTRAL APPROXIMATIONS OF INDEFINITE SYSTEMS ON PERIODIC STRUCTURES
Helmholtz equation Schrodinger equation preconditioner pseudospectral approximation indefinite matrix periodic structure sparse linear algebra
2015/7/14
This paper introduces the sparsifying preconditioner for the pseudospectral approximation of highly indefinite systems on periodic structures, which include the frequency-domain response problems of t...
Pseudospectral Calculation of Helium Wave Functions, Expectation Values, and Oscillator Strength
Pseudospectral Calculation Helium Wave Function Expectation Values Oscillator Strength
2011/8/4
Pseudospectral Calculation of Helium Wave Functions, Expectation Values, and Oscillator Strength.
A pseudospectral quadrature method for Navier-Stokes equations on rotating spheres
Navier-Stokes equations unit sphere vector spherical harmonics
2010/12/8
In this work, we describe, analyze, and implement a pseudospec-tral quadrature method for a global computer modeling of the incompressible surface Navier-Stokes equations on the rotating unit sphere. ...
Modelling Extreme-Mass-Ratio Inspirals using Pseudospectral Methods
Gravitational Waves Astronomy Extreme-Mass-Ratio Inspirals Self-Force
2010/3/18
We introduce a new time-domain method for computing the self-force acting on a scalar particle in a Schwarzschild geometry. The principal feature of our method consists in the division of the spatial ...
A Legendre pseudospectral scheme is proposed for solving
initial-boundary value problem of nonlinear Klein-Gordon equation. The
numerical solution keeps the discrete conservation. Its stability and
...
A New Pseudospectral Method for Calculations of Hydrogen Atom
in Arbitrary External Fields
pseudospectral magnetic fields hydrogen
2007/8/15
2002Vol.37No.1pp.15-20DOI:
A New Pseudospectral Method for Calculations of Hydrogen Atom
in Arbitrary External Fields
QIAO Hao-Xue1 and LI Bai-Wen1,2
1 Wuhan Institute o...
Legendre Pseudospectral Method for the Incompressible Navier-Stokes Equations on the Sphere
Legendre pseudospectral method incompressible Navier Stokes equations stability convergence
2012/8/1
The Legendre pseudospectral approximation for numerical solution of the timedependent incompressible Navier-Stokes equations on a spherical surface is presented. The fully discrete Legendre pseudospec...