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Proceedings of the National Academy of Sciences
Article . 1960 . Peer-reviewed
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Proceedings of the National Academy of Sciences
Article . 1959 . Peer-reviewed
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GENERALIZED SPACES OF GENERAL RELATIVITY, II

Generalized spaces of general relativity
Authors: Luther Pfahler Eisenhart;

GENERALIZED SPACES OF GENERAL RELATIVITY, II

Abstract

1. This paper is a revision of the paper with the same title which was published a year ago. The paper deals with a space of four dimensions V4 of coordinates xi as i takes the values 1 to 4. The geometry of the space is based upon the asymmetric functions gij and the asymmetric coefficients of connection Prk and upon the Einsteinm equation2 gij,k = gih kj + ghj ri. (1) Here, gi,k denotes the derivative of gij with respect to xk and each of the terrms on the right stands for the sum of terms as h takes the values 1 to 4. Throughout this paper, a quantity followed by a comma and index denotes the derivative of the quantity with respect to x with this index. Also, when there is a repeated upper and lower index, the one term stands for the sum of terms as that index takes the values 1 to 4, as for example h in equation (1). Write equation (1) in the form gij,k + gij,k = (g9 + gh)(rj - rjh ) + (gjh - gjh) (rp + rk), - - - v ~ v w v v i where gij and gij are the symmetric and skew-symmetric parts of gij, and Frj and Fjk: are the symmetric and skew-symmetric parts of Frj. This type of notation is used throughout this paper. When i and j are interchanged in the above equation, the resulting equation is

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Keywords

classical field theory, relativity theory

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
bronze