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arXiv math-ph/0105023math-phmath.MP
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场论中的外微分形式

Exterior Differential Forms in Field Theory

L. I. Petrova

摘要:

外微分形式在场论中的作用与它们反映守恒律的性质这一事实有关。在场论中,封闭外形式的作用是众所周知的。形式封闭的条件意味着封闭形式是守恒量,这对应于物理场的守恒定律。在目前的工作中,明确了外部形式在场论中的作用,它对应于物质系统的守恒定律。这些形式定义在伴随的不可微流形上,因此,它们不是封闭的。从对应于物质系统的守恒定律的形式到对应于物理场的守恒定律的形式的转变(在简并变换下是可能的)描述了形成物理场的物理结构的起源机制。在这项工作中,它表明,物理结构是由物质系统在进化过程中产生的。在附录中,我们给出了热力学原理和电磁场方程的分析。守恒律在伪度量和度量空间的形成中的作用也被证明。

英文摘要:

A role of the exterior differential forms in field theory is connected with a fact that they reflect properties of the conservation laws. In field theory a role of the closed exterior forms is well known. A condition of closure of the form means that the closed form is the conservative quantity, and this corresponds to the conservation laws for physical fields. In the present work a role in field theory of the exterior forms, which correspond to the conservation laws for the material systems is clarified. These forms are defined on the accompanying nondifferentiable manifolds, and hense, they are not closed. Transition from the forms, which correspond to the conservation laws for the material systems, to those, which correspond to the conservation laws for physical fields (it is possible under the degenerate transform), describe a mechanism of origin of the physical structures that format physical fields. In the work it is shown that the physical structures are generated by the material systems in the evolutionary process. In Appendices we give an analysis of the principles of thermodinamics and equations of the electromagnetic field. A role of the conservation laws in formation of the pseudometric and metric spaces is also shown.

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