On the stability of covariant BSSN formulation

Ryosuke Urakawa, Takuya Tsuchiya*, Gen Yoneda

*この研究の対応する著者

研究成果: Article査読

抄録

In this study, we investigate the numerical stability of the covariant BSSN (cBSSN) formulation proposed by Brown. We calculate the constraint amplification factor (CAF), which is an eigenvalue of the coefficient matrix of the evolution equations of the constraints on the cBSSN formulation and on some adjusted formulations with constraints added to the evolution equations. The adjusted formulations have a higher numerical stability than the cBSSN formulation from the viewpoint of the CAF.

本文言語English
論文番号165002
ジャーナルClassical and Quantum Gravity
39
16
DOI
出版ステータスPublished - 2022 8月 18

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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