CANTO 发表于 2025-3-21 19:09:27

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异端 发表于 2025-3-22 00:11:45

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Melanoma 发表于 2025-3-22 00:59:34

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表状态 发表于 2025-3-22 05:08:07

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指令 发表于 2025-3-22 11:02:16

Methoden und Praxis der Altlastenerkundungll be interested solely in those properties of figures in the plane . that are invariant under the transformations (1) (or, equivalently, under the ..and the ..cf. p. 25 above);it is only these properties of figures that have geometric significance in this unusual geometry. Also, we shall bear in mi

Affection 发表于 2025-3-22 15:12:00

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Density 发表于 2025-3-22 17:42:46

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fabricate 发表于 2025-3-22 22:25:42

https://doi.org/10.1007/978-3-642-58488-6.. The question arises, . properties of figures are of interest to the geometer? To answer this question, we can use two different approaches. Both lead to the same conclusions. Both will be of use to us in what follows, and so deserve our attention.

使闭塞 发表于 2025-3-23 02:32:25

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顶点 发表于 2025-3-23 06:13:46

B. Wohlrab,A. Meuser,V. SokollekIn Section 2 of the Introduction we formulated the Galilean principle of relativity as follows. . (cf. p. 18). This implies that .. When we deduced the formulas describing a Galilean transformation we used this principle and, implicitly, another fundamental condition which we propose to discuss in detail.
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查看完整版本: Titlebook: A Simple Non-Euclidean Geometry and Its Physical Basis; An Elementary Accoun Basil Gordon Textbook 1979 Springer-Verlag New York Inc. 1979