
[Note: Original 2015 Presentation Slides, UMONS — See below for important ERRATUM][English]These are the presentation slides (in French) used during the defense of the Master's Thesis titled "Exploring Quaternions and their Natural Structure" (University of Mons, November 2015).Please note: While these slides are in French, the full 166-page Thesis they accompany is written in English (DOI: 10.5281/zenodo.18320378).The presentation provides a visual overview of the quaternionic model, including:Algebraic foundations: Frobenius & Frobenius-Pontryagin theorems, commutators as derivations, and the "Differential Galois Group" analogy.Rotations & Automorphisms: A streamlined 2-line proof of therotation rule using commutation/anticommutation relations.Quaternionic Möbius Transformations: Detailed study of the subgroup, its conformal action on the sphere of square roots of , and its isomorphism with the Restricted Lorentz Group.Relativistic Kinematics: Non-linear boosts, Apollonian circles, and ruler-and-compass constructions for relativistic velocity addition.Velocity Addition Formulas: Presentation of two alternative quaternionic formulas compared to the standard 3D vector approach.Note on Erratum: > As in the main Thesis, a typo is present in one of the alternative velocity addition formulas on the slides: the expression (1+v)/(1−v) should read (v−1)/(v+1).-------------------------------------------------------------------------------------------------------------[Français]Supports de présentation utilisés lors de la défense du mémoire de Master à l'Université de Mons (novembre 2015).Note : Bien que ces slides soient en français, le mémoire complet de 166 pages est rédigé en anglais.Cette présentation offre un résumé visuel et pédagogique du modèle développé :Bases algébriques : Théorèmes de Frobenius et de Frobenius-Pontryagin, commutateurs vus comme dérivations.Rotations : Preuve simplifiée de la règle de rotationvia les relations de commutation.Transformations de Möbius Quaternioniques : Étude de l'isomorphisme d'un sous-groupe avec le groupe de Lorentz restreint et action conforme sur la sphère des racines carrées de.Cinématique Relativiste : Boosts non-linéaires, cercles apolloniens et constructions à la règle et au compas de l'addition des vitesses.Note/Erratum: > Comme dans le document principal (Mémoire), une faute de frappe s'est glissée dans une des deux formules alternatives d'addion des vitesses relativistes: l'expression (1+v)/(1−v) doit en fait se lire: (v−1)/(v+1).
Nonlinear Boosts, Ruler and Compass Construction, Noncommutative Algebra, Möbius Transformations, Quaternionic Möbius Transformations, Lorentz Group, Relativistic Kinematics, Quaternions, Division Algebras, Differential Galois Group, Velocity Addition Formulas, Conformal Geometry, Topological Division Rings
Nonlinear Boosts, Ruler and Compass Construction, Noncommutative Algebra, Möbius Transformations, Quaternionic Möbius Transformations, Lorentz Group, Relativistic Kinematics, Quaternions, Division Algebras, Differential Galois Group, Velocity Addition Formulas, Conformal Geometry, Topological Division Rings
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