Combined Gravitational Action (V): Extension

In series of papers
relative to the Combined Gravitational Action (CGA) as an alternative gravity
theory, we have developed the CGA<i>-</i>formalism, which is
exclusively based on a new form of velocity<i>-</i>dependent
gravitational potential energy. The present paper is actually an additional
exploration, exploitation and extension of the CGA with the main aim of showing
(i) the Galilean invariance of CGA<i>-</i>equations; (ii) that the CGA is in a
certain manner a metric gravity theory; (iii) the existence of an important
similarity between the CGA and General Relativity Theory; (iv) a new CGA<i>-</i>formula for perigee
and perihelion precession is derived and proved to be in excellent agreement
with observations; (v)  the CGA<i>-</i>effects on orbital
motion inside and outside the Solar System are investigated; (vi) the
conversion rate of orbital energy into gravitational radiation is calculated
and its effects are studied.

在一系列以组合引力作用（Combined Gravitational Action, CGA）作为替代引力理论的研究论文中，我们已构建了CGA形式体系，该体系完全基于一种全新的速度依赖型引力势能形式。本文实为对CGA的进一步探索、拓展与完善，其核心目标在于论证：(i) CGA方程的伽利略不变性；(ii) CGA在特定意义上属于度规引力理论；(iii) CGA与广义相对论（General Relativity Theory）存在重要的相似性；(iv) 推导得到了一套适用于近地点与近日点进动的CGA新公式，并证明其与观测数据高度吻合；(v) 研究了CGA对太阳系内外轨道运动的影响；(vi) 计算了轨道能量向引力辐射的转换速率，并对其相关效应展开了研究。