A new generalized harmonic evolution system

被引：258

作者：

Lindblom, Lee ^{[1
]}

Scheel, Mark A.

Kidder, Lawrence E.

Owen, Robert

Rinne, Oliver

机构：

[1] CALTECH, Pasadena, CA 91125 USA

[2] Cornell Univ, Ctr Radiophys & Space Res, Ithaca, NY 14853 USA

来源：

CLASSICAL AND QUANTUM GRAVITY | 2006年 / 23卷 / 16期

关键词：

D O I：

10.1088/0264-9381/23/16/S09

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A new representation of the Einstein evolution equations is presented that is first order, linearly degenerate and symmetric hyperbolic. This new system uses the generalized harmonic method to specify the coordinates, and exponentially suppresses all small short-wavelength constraint violations. Physical and constraint-preserving boundary conditions are derived for this system, and numerical tests that demonstrate the effectiveness of the constraint suppression properties and the constraint- preserving boundary conditions are presented.

引用

页码：S447 / S462

页数：16

共 31 条

[1] First-order symmetrizable hyperbolic formulations of Einstein's equations including lapse and shift as dynamical fields [J].