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| Format: | Preprint |
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2025
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| Online Access: | https://arxiv.org/abs/2508.12810 |
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| _version_ | 1866915452017442816 |
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| author | Iglesias-Zemmour, Patrick |
| author_facet | Iglesias-Zemmour, Patrick |
| contents | This work presents a group-theoretic interpretation of the historical evolution of mechanics, proposing that each fundamental theory of motion corresponds to a distinct geometry in the sense of Felix Klein. The character of each geometry is uniquely determined by its Inertia Group-the group of spacetime transformations that preserves its privileged class of inertial motions. We trace the three major epistemological ruptures in the history of mechanics by translating foundational physical principles into the unambiguous language of group theory. The analysis begins with Aristotelian mechanics, where absolute Space and Time are shown to be homogeneous spaces of the Group of Aristotle, defined by its preservation of rest. The second rupture, driven by the relativity of motion (Bruno, Galileo), leads to the abandonment of absolute Space and the construction of the Galilean Group, which preserves the class of uniform rectilinear motions. The final rupture, precipitated by the crisis in electromagnetism, results in the dissolution of absolute Time and the emergence of the Poincaré Group, preserving affine lines and the Minkowski metric. Central results of this approach are theorems demonstrating, with mathematical certainty, the non-existence of a Galilean-invariant "Space" and a Poincaré-invariant "Time," where invariance is defined with respect to the action of the corresponding inertia group. This geometric framework provides a unified perspective on the transition from classical to modern physics and allows for a rigorous distinction between 'primary' epistemological ruptures, which alter the Inertia Group itself, and 'secondary' ruptures, which introduce new formalisms for the management of dynamics within a stable geometry. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_12810 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The Geometry of Motions, Vol. I: Mechanics as Geometries Iglesias-Zemmour, Patrick History and Overview Prtimary 70A05, Secondary 83A05, 01A40, 01A45, 53C30 This work presents a group-theoretic interpretation of the historical evolution of mechanics, proposing that each fundamental theory of motion corresponds to a distinct geometry in the sense of Felix Klein. The character of each geometry is uniquely determined by its Inertia Group-the group of spacetime transformations that preserves its privileged class of inertial motions. We trace the three major epistemological ruptures in the history of mechanics by translating foundational physical principles into the unambiguous language of group theory. The analysis begins with Aristotelian mechanics, where absolute Space and Time are shown to be homogeneous spaces of the Group of Aristotle, defined by its preservation of rest. The second rupture, driven by the relativity of motion (Bruno, Galileo), leads to the abandonment of absolute Space and the construction of the Galilean Group, which preserves the class of uniform rectilinear motions. The final rupture, precipitated by the crisis in electromagnetism, results in the dissolution of absolute Time and the emergence of the Poincaré Group, preserving affine lines and the Minkowski metric. Central results of this approach are theorems demonstrating, with mathematical certainty, the non-existence of a Galilean-invariant "Space" and a Poincaré-invariant "Time," where invariance is defined with respect to the action of the corresponding inertia group. This geometric framework provides a unified perspective on the transition from classical to modern physics and allows for a rigorous distinction between 'primary' epistemological ruptures, which alter the Inertia Group itself, and 'secondary' ruptures, which introduce new formalisms for the management of dynamics within a stable geometry. |
| title | The Geometry of Motions, Vol. I: Mechanics as Geometries |
| topic | History and Overview Prtimary 70A05, Secondary 83A05, 01A40, 01A45, 53C30 |
| url | https://arxiv.org/abs/2508.12810 |