滔滔不绝地讲
发表于 2025-3-28 15:02:49
that is comparatively gentle in mathematical rigor with deta.Suitable for a one-semester course in general relativity for senior undergraduates or beginning graduate students, this text clarifies the mathematical aspects of Einstein‘s theory of relativity without sacrificing physical understanding..
惊惶
发表于 2025-3-28 19:53:26
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