arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.15673gr-qcmath.DG
收藏

广义相对论中的初边值问题与准局部Hamilton

The initial boundary value problem and quasi-local Hamiltonians in General Relativity

Zhongshan An, Michael T. Anderson

摘要:

我们讨论了初边值问题(IBVP)和拟局部哈密顿之间的关系在GR。后者传统上是基于Dirichlet边界条件,但在这里被证明是不适定的IBVP。我们提出并分析了其他几个选择的边界条件是更好地表现相对于IBVP和进行相应的哈密顿分析,使用协变相空间方法的框架。

英文摘要:

We discuss relations between the initial boundary value problem (IBVP) and quasi-local Hamiltonians in GR. The latter have traditionally been based on Dirichlet boundary conditions, which however are shown here to be ill-posed for the IBVP. We present and analyse several other choices of boundary conditions which are better behaved with respect to the IBVP and carry out a corresponding Hamiltonian analysis, using the framework of the covariant phase space method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑