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Finding Integrals and Identities in the Newman–Penrose Formalism: a Comment
Gravitation and Cosmology ( IF 1.2 ) Pub Date : 2020-08-22 , DOI: 10.1134/s0202289320020097
G. O. Papadopoulos

Abstract

The goal of the present short letter is to prove, through a specific example (i.e., the class of Ricci-flat, Petrov type D geometries), that the original Newman-Penrose (NP) formalism, seen as an exterior differential system (EDS), suffices to provide the needed syzygies and integrals of the EDS under consideration—without (in principle) the aid of a computer algebra system (CAS).


中文翻译:

在纽曼-彭罗斯形式主义中寻找积分和身份:评论

摘要

本短信的目的是通过一个特定示例(例如Ricci-flat,Petrov D类几何)证明原始的Newman-Penrose(NP)形式主义被视为外部微分系统(EDS) ),就足以提供所考虑的EDS所需的合音和积分-无需(原则上)借助计算机代数系统(CAS)。
更新日期:2020-08-22
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