# 物质场起源问题的再讨论The Further Discussion on the Problems for Origin of Matter Field

Abstract: From the Noether theorem of local Poincare’ transformation group for a physical system, the conservation laws of energy-momentum tensor density have been deduced in this paper; it is the Lorentz and Levi-Civita conservation laws of energy-momentum tensor density, which is more conducive to the study for the origin of matter field. This paper also points out the difficulty of the problem for the origin of matter field research unresolved.

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http://dx.doi.org/10.1063/1.1703702

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