物质时间导数能客观吗？
Can material time derivative be objective?
摘要：
经典场论中的客观性概念传统上是基于时间相关的欧几里德变换。在本文中，我们在一个四维设置客观性，计算克里斯托弗符号的时空变换，并给出协变和材料的时间导数。通常的目标时间导数进行了研究。
英文摘要：
The concept of objectivity in classical field theories is traditionally based on time dependent Euclidean transformations. In this paper we treat objectivity in a four-dimensional setting, calculate Christoffel symbols of the spacetime transformations, and give covariant and material time derivatives. The usual objective time derivatives are investigated.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
