A working archive of definitions, proofs, examples, and open questions in mathematics by RIMO.https://rimoooliii.github.io/enhttps://rimoooliii.github.io/Maddy/articles/why-the-dynkin-list-ends/https://rimoooliii.github.io/Maddy/articles/why-the-dynkin-list-ends/A proof-driven route from simple roots to the finite Dynkin diagrams, using positive-definite Cartan forms, spectral radius, Schur complements, and a determinant recurrence to explain both the infinite families and the exceptional cases.Wed, 19 Aug 2026 00:00:00 GMTLie TheoryAlgebraGeometryRIMOhttps://rimoooliii.github.io/Maddy/articles/what-a-point-cannot-see/https://rimoooliii.github.io/Maddy/articles/what-a-point-cannot-see/A single tangency forces a change in what we mean by geometric space, leading from polynomial zero sets to spectra, nilpotents, infinitesimal probes, and families over a base.Wed, 12 Aug 2026 00:00:00 GMTAlgebraic GeometryAlgebraGeometryRIMO