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arxiv: 1211.0149 · v2 · pith:AYWVQVOOnew · submitted 2012-11-01 · 🧮 math.HO

Fantappi\`e's final relativity and Lie algebra deformations

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The purpose of this note is to discuss a few lines appearing in the work of late Fantappi\`e. They concern the proof of rigidity of a specific real semisimple Lie algebra: ${\mathfrak O}(4,1)$. Our intention is to discuss to what extent such proof constitutes a missed opportunity in history of post-war Italian mathematics.

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