A Unified Theory of General Relativity of Gravitation and Electromagnetism. Iv.
نویسنده
چکیده
It being required that the determinant g of gij be different from zero, and in fact negative, a contravariant symmetric tensor giJ is defined by g'Jg,, = Vk, where 4Vk is the Kronecker delta, and where a repeated superscript and subscript, as i in this case, means the sum as the index takes the values 1 to 4. This notation holds throughout the paper. For any coefficients of connection rijh, symmetric in j and h, one has
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عنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 43 4 شماره
صفحات -
تاریخ انتشار 1956